Home / 152,839.60-229,432.20-90,545.20

Finding the Fourth Proportional to 152,839.60, 229,432.20 and 90,545.20

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Solution

The fourth proportional to 152,839.60, 229,432.20 and 90,545.20 is: 135,920.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,839.60 : 229,432.20 = 90,545.20 : x
  2. Step 2: Convert to fraction form
    152,839.60/229,432.20 = 90,545.20/x
  3. Step 3: Cross multiply
    152,839.60x = 229,432.20 × 90,545.20
  4. Step 4: Simplify right side
    152,839.60x = 20,773,984,435.44
  5. Step 5: Solve for x
    x = 20,773,984,435.44/152,839.60
  6. Step 6: Final answer
    x = 135,920.17

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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.