Finding the Fourth Proportional to 138,752.64, 207,953.72 and 115,657.92
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Solution
The fourth proportional to 138,752.64, 207,953.72 and 115,657.92 is: 173,340.80
Step by Step Solution
- Step 1: Write the proportion equation
138,752.64 : 207,953.72 = 115,657.92 : x - Step 2: Convert to fraction form
138,752.64/207,953.72 = 115,657.92/x - Step 3: Cross multiply
138,752.64x = 207,953.72 × 115,657.92 - Step 4: Simplify right side
138,752.64x = 24,051,494,133.17 - Step 5: Solve for x
x = 24,051,494,133.17/138,752.64 - Step 6: Final answer
x = 173,340.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.