Answer
$141$
Work Step by Step
Given values are
Patio blocks $p_1=93$.
Area covers $a_1=124\;ft^2$.
Patio blocks $p_2$.
Area covers $a_2=188\;ft^2$.
Ratio is same.
$\frac{p_1}{a_1}=\frac{p_2}{a_2}$
Substitute all the values.
$\Rightarrow \frac{93}{124\;ft^2}=\frac{p_2}{188\;ft^2}$
Simplify.
$\Rightarrow (188\;ft^2)\frac{93}{124\;ft^2}=p_2$
$\Rightarrow 141=p_2$.