Home / 136,147.52-204,221.12-42,660.56

Finding the Fourth Proportional to 136,147.52, 204,221.12 and 42,660.56

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Solution

The fourth proportional to 136,147.52, 204,221.12 and 42,660.56 is: 63,990.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,147.52 : 204,221.12 = 42,660.56 : x
  2. Step 2: Convert to fraction form
    136,147.52/204,221.12 = 42,660.56/x
  3. Step 3: Cross multiply
    136,147.52x = 204,221.12 × 42,660.56
  4. Step 4: Simplify right side
    136,147.52x = 8,712,187,343.03
  5. Step 5: Solve for x
    x = 8,712,187,343.03/136,147.52
  6. Step 6: Final answer
    x = 63,990.79

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1.5x scale

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.