Finding the Fourth Proportional to 136,281.05, 187,988.12 and 88,566.17
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Solution
The fourth proportional to 136,281.05, 187,988.12 and 88,566.17 is: 122,169.50
Step by Step Solution
- Step 1: Write the proportion equation
136,281.05 : 187,988.12 = 88,566.17 : x - Step 2: Convert to fraction form
136,281.05/187,988.12 = 88,566.17/x - Step 3: Cross multiply
136,281.05x = 187,988.12 × 88,566.17 - Step 4: Simplify right side
136,281.05x = 16,649,387,793.90 - Step 5: Solve for x
x = 16,649,387,793.90/136,281.05 - Step 6: Final answer
x = 122,169.50
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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.