Finding the Fourth Proportional to 132,414.21, 182,771.18 and 87,127.11
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Solution
The fourth proportional to 132,414.21, 182,771.18 and 87,127.11 is: 120,261.45
Step by Step Solution
- Step 1: Write the proportion equation
132,414.21 : 182,771.18 = 87,127.11 : x - Step 2: Convert to fraction form
132,414.21/182,771.18 = 87,127.11/x - Step 3: Cross multiply
132,414.21x = 182,771.18 × 87,127.11 - Step 4: Simplify right side
132,414.21x = 15,924,324,269.05 - Step 5: Solve for x
x = 15,924,324,269.05/132,414.21 - Step 6: Final answer
x = 120,261.45
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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.