Solve for .
Simplify the denominator. , so the equation reads
Multiply the two percentage factors. Both factors multiply together: This is the crucial observation - a rate applied twice is not but roughly .
Form the single coefficient of x. so the equation collapses to
Factor out x and divide.
Verify by substitution. , so the root is correct.
Reject the commonly quoted value 111.241. Substituting gives , so that number does not solve this equation - it presumably belongs to a differently structured formula. Because the added term is only about of , any correct answer must sit just below .
Need to solve a different problem like this? Open the solver →