Finding the Fourth Proportional to 168,386.11, 232,377.66 and 91,909.96
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Solution
The fourth proportional to 168,386.11, 232,377.66 and 91,909.96 is: 126,838.38
Step by Step Solution
- Step 1: Write the proportion equation
168,386.11 : 232,377.66 = 91,909.96 : x - Step 2: Convert to fraction form
168,386.11/232,377.66 = 91,909.96/x - Step 3: Cross multiply
168,386.11x = 232,377.66 × 91,909.96 - Step 4: Simplify right side
168,386.11x = 21,357,820,854.55 - Step 5: Solve for x
x = 21,357,820,854.55/168,386.11 - Step 6: Final answer
x = 126,838.38
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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.