Finding the Fourth Proportional to 138,911.14, 191,697.36 and 75,248.92
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Solution
The fourth proportional to 138,911.14, 191,697.36 and 75,248.92 is: 103,843.50
Step by Step Solution
- Step 1: Write the proportion equation
138,911.14 : 191,697.36 = 75,248.92 : x - Step 2: Convert to fraction form
138,911.14/191,697.36 = 75,248.92/x - Step 3: Cross multiply
138,911.14x = 191,697.36 × 75,248.92 - Step 4: Simplify right side
138,911.14x = 14,425,019,306.85 - Step 5: Solve for x
x = 14,425,019,306.85/138,911.14 - Step 6: Final answer
x = 103,843.50
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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.