How do you solve for x in 25 = 3 ^ (x/100)? Precalculus Solving Exponential and Logarithmic Equations Logarithmic Models 1 Answer Shwetank Mauria Jun 26, 2016 x=293.02 Explanation: 25=3^(x/100) i.e. log25=log(3^(x/100))=x/100log3 Hence x/100=log25/log3 and x=100xx2log5/log3=200xx0.6990/0.4771 or x=293.02 Answer link Related questions What is a logarithmic model? How do I use a logarithmic model to solve applications? What is the advantage of a logarithmic model? How does the Richter scale measure magnitude? What is the range of the Richter scale? How do you solve 9^(x-4)=81? How do you solve logx+log(x+15)=2? How do you solve the equation 2 log4(x + 7)-log4(16) = 2? How do you solve 2 log x^4 = 16? How do you solve 2+log_3(2x+5)-log_3x=4? See all questions in Logarithmic Models Impact of this question 1560 views around the world You can reuse this answer Creative Commons License