Home / 146,781.10-220,171.65-76,651.30

Finding the Fourth Proportional to 146,781.10, 220,171.65 and 76,651.30

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Solution

The fourth proportional to 146,781.10, 220,171.65 and 76,651.30 is: 114,976.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,781.10 : 220,171.65 = 76,651.30 : x
  2. Step 2: Convert to fraction form
    146,781.10/220,171.65 = 76,651.30/x
  3. Step 3: Cross multiply
    146,781.10x = 220,171.65 × 76,651.30
  4. Step 4: Simplify right side
    146,781.10x = 16,876,443,195.65
  5. Step 5: Solve for x
    x = 16,876,443,195.65/146,781.10
  6. Step 6: Final answer
    x = 114,976.95

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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.