Moneysupermarket.com was able to accelerate revenue growth in the fourth quarter with the board now expecting year-on-year sales to rise by 20%.When the price comparison website firm reveals its full-year results next month, it expects to report sales of £178m for the 12 months to December 31st, up from £148.9m the year before.This was helped by a 19% rise in revenues in the final three months of the year, up from 14% growth in the third quarter, "supported by higher levels of marketing spend," the firm said.Second half revenues rose by 16% in total, however this is well under the 28% growth seen in the first six months of the year.Moneysupermarket also said that full-year adjusted EBITDA (earnings before interest, tax, depreciation and amortisation) will total £49.5m, 21% higher than the £41m reported the year before.The debt-free company held £34.9m in cash balances by the end of the year.