122.4 is 144% of 85.
Step 1: Translate the words into an equation.
122.4 | is | what percent | of | 85 |
122.4 | = | x | $ \cdot $ | 85 |
Step 2: Solve for $ x $.
$$ \begin{aligned} 122.4 &= x \cdot 85 \\[1.2 em] 85 \cdot x &= 122.4 \\[1.2 em] x &= \dfrac{ 122.4 }{ 85 } \\[1.2 em] x &= 1.44 \end{aligned} $$Step 3: Express $ x $ as a percentage.
$$ x = 1.44 = 1.44 ~~\cdot~~ 100 \% = 144 \% $$