Finding the Fourth Proportional to 125,337.10, 172,964.01 and 68,748.70
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Solution
The fourth proportional to 125,337.10, 172,964.01 and 68,748.70 is: 94,872.55
Step by Step Solution
- Step 1: Write the proportion equation
125,337.10 : 172,964.01 = 68,748.70 : x - Step 2: Convert to fraction form
125,337.10/172,964.01 = 68,748.70/x - Step 3: Cross multiply
125,337.10x = 172,964.01 × 68,748.70 - Step 4: Simplify right side
125,337.10x = 11,891,050,834.29 - Step 5: Solve for x
x = 11,891,050,834.29/125,337.10 - Step 6: Final answer
x = 94,872.55
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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.