Finding the Fourth Proportional to 125,414.38, 173,060.42 and 74,418.32
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Solution
The fourth proportional to 125,414.38, 173,060.42 and 74,418.32 is: 102,690.50
Step by Step Solution
- Step 1: Write the proportion equation
125,414.38 : 173,060.42 = 74,418.32 : x - Step 2: Convert to fraction form
125,414.38/173,060.42 = 74,418.32/x - Step 3: Cross multiply
125,414.38x = 173,060.42 × 74,418.32 - Step 4: Simplify right side
125,414.38x = 12,878,865,714.89 - Step 5: Solve for x
x = 12,878,865,714.89/125,414.38 - Step 6: Final answer
x = 102,690.50
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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.