Home / 146,764.80-220,147.20-121,854.60

Finding the Fourth Proportional to 146,764.80, 220,147.20 and 121,854.60

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Solution

The fourth proportional to 146,764.80, 220,147.20 and 121,854.60 is: 182,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,764.80 : 220,147.20 = 121,854.60 : x
  2. Step 2: Convert to fraction form
    146,764.80/220,147.20 = 121,854.60/x
  3. Step 3: Cross multiply
    146,764.80x = 220,147.20 × 121,854.60
  4. Step 4: Simplify right side
    146,764.80x = 26,825,948,997.12
  5. Step 5: Solve for x
    x = 26,825,948,997.12/146,764.80
  6. Step 6: Final answer
    x = 182,781.90

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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.