Finding the Fourth Proportional to 100,095.68, 138,126.07 and 54,764.63
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Solution
The fourth proportional to 100,095.68, 138,126.07 and 54,764.63 is: 75,571.92
Step by Step Solution
- Step 1: Write the proportion equation
100,095.68 : 138,126.07 = 54,764.63 : x - Step 2: Convert to fraction form
100,095.68/138,126.07 = 54,764.63/x - Step 3: Cross multiply
100,095.68x = 138,126.07 × 54,764.63 - Step 4: Simplify right side
100,095.68x = 7,564,423,116.90 - Step 5: Solve for x
x = 7,564,423,116.90/100,095.68 - Step 6: Final answer
x = 75,571.92
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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.