Finding the Fourth Proportional to 124,691.75, 172,074.62 and 68,103.26
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Solution
The fourth proportional to 124,691.75, 172,074.62 and 68,103.26 is: 93,982.50
Step by Step Solution
- Step 1: Write the proportion equation
124,691.75 : 172,074.62 = 68,103.26 : x - Step 2: Convert to fraction form
124,691.75/172,074.62 = 68,103.26/x - Step 3: Cross multiply
124,691.75x = 172,074.62 × 68,103.26 - Step 4: Simplify right side
124,691.75x = 11,718,842,244.74 - Step 5: Solve for x
x = 11,718,842,244.74/124,691.75 - Step 6: Final answer
x = 93,982.50
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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.