Finding the Fourth Proportional to 163,221.35, 225,249.93 and 91,605.81
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Solution
The fourth proportional to 163,221.35, 225,249.93 and 91,605.81 is: 126,418.52
Step by Step Solution
- Step 1: Write the proportion equation
163,221.35 : 225,249.93 = 91,605.81 : x - Step 2: Convert to fraction form
163,221.35/225,249.93 = 91,605.81/x - Step 3: Cross multiply
163,221.35x = 225,249.93 × 91,605.81 - Step 4: Simplify right side
163,221.35x = 20,634,202,290.09 - Step 5: Solve for x
x = 20,634,202,290.09/163,221.35 - Step 6: Final answer
x = 126,418.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.