Home / 161,915.40-242,694.90-56,680.20

Finding the Fourth Proportional to 161,915.40, 242,694.90 and 56,680.20

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Solution

The fourth proportional to 161,915.40, 242,694.90 and 56,680.20 is: 84,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,915.40 : 242,694.90 = 56,680.20 : x
  2. Step 2: Convert to fraction form
    161,915.40/242,694.90 = 56,680.20/x
  3. Step 3: Cross multiply
    161,915.40x = 242,694.90 × 56,680.20
  4. Step 4: Simplify right side
    161,915.40x = 13,755,995,470.98
  5. Step 5: Solve for x
    x = 13,755,995,470.98/161,915.40
  6. Step 6: Final answer
    x = 84,957.92

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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.