Finding the Fourth Proportional to 138,425.92, 207,615.36 and 38,596.08
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Solution
The fourth proportional to 138,425.92, 207,615.36 and 38,596.08 is: 57,887.56
Step by Step Solution
- Step 1: Write the proportion equation
138,425.92 : 207,615.36 = 38,596.08 : x - Step 2: Convert to fraction form
138,425.92/207,615.36 = 38,596.08/x - Step 3: Cross multiply
138,425.92x = 207,615.36 × 38,596.08 - Step 4: Simplify right side
138,425.92x = 8,013,139,043.79 - Step 5: Solve for x
x = 8,013,139,043.79/138,425.92 - Step 6: Final answer
x = 57,887.56
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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.