Finding the Fourth Proportional to 159,423.68, 239,132.96 and 54,315.84
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Solution
The fourth proportional to 159,423.68, 239,132.96 and 54,315.84 is: 81,472.89
Step by Step Solution
- Step 1: Write the proportion equation
159,423.68 : 239,132.96 = 54,315.84 : x - Step 2: Convert to fraction form
159,423.68/239,132.96 = 54,315.84/x - Step 3: Cross multiply
159,423.68x = 239,132.96 × 54,315.84 - Step 4: Simplify right side
159,423.68x = 12,988,707,594.09 - Step 5: Solve for x
x = 12,988,707,594.09/159,423.68 - Step 6: Final answer
x = 81,472.89
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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.