Finding the Fourth Proportional to 115,132.92, 172,649.97 and 40,230.60
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Solution
The fourth proportional to 115,132.92, 172,649.97 and 40,230.60 is: 60,328.63
Step by Step Solution
- Step 1: Write the proportion equation
115,132.92 : 172,649.97 = 40,230.60 : x - Step 2: Convert to fraction form
115,132.92/172,649.97 = 40,230.60/x - Step 3: Cross multiply
115,132.92x = 172,649.97 × 40,230.60 - Step 4: Simplify right side
115,132.92x = 6,945,811,883.08 - Step 5: Solve for x
x = 6,945,811,883.08/115,132.92 - Step 6: Final answer
x = 60,328.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.