Finding the Fourth Proportional to 125,102.10, 172,640.16 and 67,740.84
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Solution
The fourth proportional to 125,102.10, 172,640.16 and 67,740.84 is: 93,481.96
Step by Step Solution
- Step 1: Write the proportion equation
125,102.10 : 172,640.16 = 67,740.84 : x - Step 2: Convert to fraction form
125,102.10/172,640.16 = 67,740.84/x - Step 3: Cross multiply
125,102.10x = 172,640.16 × 67,740.84 - Step 4: Simplify right side
125,102.10x = 11,694,789,456.13 - Step 5: Solve for x
x = 11,694,789,456.13/125,102.10 - Step 6: Final answer
x = 93,481.96
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1.5x scale
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.