Finding the Fourth Proportional to 138,602.58, 207,882.27 and 45,107.70
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Solution
The fourth proportional to 138,602.58, 207,882.27 and 45,107.70 is: 67,654.52
Step by Step Solution
- Step 1: Write the proportion equation
138,602.58 : 207,882.27 = 45,107.70 : x - Step 2: Convert to fraction form
138,602.58/207,882.27 = 45,107.70/x - Step 3: Cross multiply
138,602.58x = 207,882.27 × 45,107.70 - Step 4: Simplify right side
138,602.58x = 9,377,091,070.48 - Step 5: Solve for x
x = 9,377,091,070.48/138,602.58 - Step 6: Final answer
x = 67,654.52
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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.