Question

47 1/2 of what number is 190

Answer 1

The word "of" is a substitution of the multiplicative operation, so re-writing your problem statement, we get:

47.5*x = 190

solving for x

x = 190/47.5 = 4

thus your number is 4

Answer 2

`47 (1)/(2) \cdot x=190\\ \\ (47\cdot2+1)/(2) \cdotx=190\\ \\ (95)/(2) \cdot x=190\ /\cdot (2)/(95) \\\\x= (190)/(1) \cdot (2)/(95)\\ \\x=2\cdot2\\ \\x=4`