Finding the Fourth Proportional to 125,461.92, 173,135.76 and 71,755.68
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Solution
The fourth proportional to 125,461.92, 173,135.76 and 71,755.68 is: 99,021.87
Step by Step Solution
- Step 1: Write the proportion equation
125,461.92 : 173,135.76 = 71,755.68 : x - Step 2: Convert to fraction form
125,461.92/173,135.76 = 71,755.68/x - Step 3: Cross multiply
125,461.92x = 173,135.76 × 71,755.68 - Step 4: Simplify right side
125,461.92x = 12,423,474,191.12 - Step 5: Solve for x
x = 12,423,474,191.12/125,461.92 - Step 6: Final answer
x = 99,021.87
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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.