Home / 114,819.90-172,359.45-88,640.70

Finding the Fourth Proportional to 114,819.90, 172,359.45 and 88,640.70

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Solution

The fourth proportional to 114,819.90, 172,359.45 and 88,640.70 is: 133,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,819.90 : 172,359.45 = 88,640.70 : x
  2. Step 2: Convert to fraction form
    114,819.90/172,359.45 = 88,640.70/x
  3. Step 3: Cross multiply
    114,819.90x = 172,359.45 × 88,640.70
  4. Step 4: Simplify right side
    114,819.90x = 15,278,062,299.62
  5. Step 5: Solve for x
    x = 15,278,062,299.62/114,819.90
  6. Step 6: Final answer
    x = 133,061.10

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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.