Finding the Fourth Proportional to 121,263.12, 167,337.90 and 67,553.91
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Solution
The fourth proportional to 121,263.12, 167,337.90 and 67,553.91 is: 93,221.50
Step by Step Solution
- Step 1: Write the proportion equation
121,263.12 : 167,337.90 = 67,553.91 : x - Step 2: Convert to fraction form
121,263.12/167,337.90 = 67,553.91/x - Step 3: Cross multiply
121,263.12x = 167,337.90 × 67,553.91 - Step 4: Simplify right side
121,263.12x = 11,304,329,436.19 - Step 5: Solve for x
x = 11,304,329,436.19/121,263.12 - Step 6: Final answer
x = 93,221.50
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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.