Home / 154,620.30-231,906.15-54,766.20

Finding the Fourth Proportional to 154,620.30, 231,906.15 and 54,766.20

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Solution

The fourth proportional to 154,620.30, 231,906.15 and 54,766.20 is: 82,140.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,620.30 : 231,906.15 = 54,766.20 : x
  2. Step 2: Convert to fraction form
    154,620.30/231,906.15 = 54,766.20/x
  3. Step 3: Cross multiply
    154,620.30x = 231,906.15 × 54,766.20
  4. Step 4: Simplify right side
    154,620.30x = 12,700,618,592.13
  5. Step 5: Solve for x
    x = 12,700,618,592.13/154,620.30
  6. Step 6: Final answer
    x = 82,140.69

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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.