Home / 313,429.10-469,821.92-123,812.70

Finding the Fourth Proportional to 313,429.10, 469,821.92 and 123,812.70

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Solution

The fourth proportional to 313,429.10, 469,821.92 and 123,812.70 is: 185,591.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,429.10 : 469,821.92 = 123,812.70 : x
  2. Step 2: Convert to fraction form
    313,429.10/469,821.92 = 123,812.70/x
  3. Step 3: Cross multiply
    313,429.10x = 469,821.92 × 123,812.70
  4. Step 4: Simplify right side
    313,429.10x = 58,169,920,434.38
  5. Step 5: Solve for x
    x = 58,169,920,434.38/313,429.10
  6. Step 6: Final answer
    x = 185,591.96

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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.