Finding the Fourth Proportional to 125,130.65, 172,680.36 and 68,542.97
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Solution
The fourth proportional to 125,130.65, 172,680.36 and 68,542.97 is: 94,589.33
Step by Step Solution
- Step 1: Write the proportion equation
125,130.65 : 172,680.36 = 68,542.97 : x - Step 2: Convert to fraction form
125,130.65/172,680.36 = 68,542.97/x - Step 3: Cross multiply
125,130.65x = 172,680.36 × 68,542.97 - Step 4: Simplify right side
125,130.65x = 11,836,023,871.67 - Step 5: Solve for x
x = 11,836,023,871.67/125,130.65 - Step 6: Final answer
x = 94,589.33
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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.