Home / 146,789.60-220,184.40-76,659.80

Finding the Fourth Proportional to 146,789.60, 220,184.40 and 76,659.80

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Solution

The fourth proportional to 146,789.60, 220,184.40 and 76,659.80 is: 114,989.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,789.60 : 220,184.40 = 76,659.80 : x
  2. Step 2: Convert to fraction form
    146,789.60/220,184.40 = 76,659.80/x
  3. Step 3: Cross multiply
    146,789.60x = 220,184.40 × 76,659.80
  4. Step 4: Simplify right side
    146,789.60x = 16,879,292,067.12
  5. Step 5: Solve for x
    x = 16,879,292,067.12/146,789.60
  6. Step 6: Final answer
    x = 114,989.70

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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.