Home / 156,793.20-216,464.38-103,233.90

Finding the Fourth Proportional to 156,793.20, 216,464.38 and 103,233.90

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Solution

The fourth proportional to 156,793.20, 216,464.38 and 103,233.90 is: 142,521.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,793.20 : 216,464.38 = 103,233.90 : x
  2. Step 2: Convert to fraction form
    156,793.20/216,464.38 = 103,233.90/x
  3. Step 3: Cross multiply
    156,793.20x = 216,464.38 × 103,233.90
  4. Step 4: Simplify right side
    156,793.20x = 22,346,462,158.48
  5. Step 5: Solve for x
    x = 22,346,462,158.48/156,793.20
  6. Step 6: Final answer
    x = 142,521.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.