Home / 136,251.28-204,385.56-42,760.72

Finding the Fourth Proportional to 136,251.28, 204,385.56 and 42,760.72

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Solution

The fourth proportional to 136,251.28, 204,385.56 and 42,760.72 is: 64,143.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,251.28 : 204,385.56 = 42,760.72 : x
  2. Step 2: Convert to fraction form
    136,251.28/204,385.56 = 42,760.72/x
  3. Step 3: Cross multiply
    136,251.28x = 204,385.56 × 42,760.72
  4. Step 4: Simplify right side
    136,251.28x = 8,739,673,703.20
  5. Step 5: Solve for x
    x = 8,739,673,703.20/136,251.28
  6. Step 6: Final answer
    x = 64,143.79

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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.