Home / 239,034.28-358,548.18-81,372.64

Finding the Fourth Proportional to 239,034.28, 358,548.18 and 81,372.64

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Solution

The fourth proportional to 239,034.28, 358,548.18 and 81,372.64 is: 122,057.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,034.28 : 358,548.18 = 81,372.64 : x
  2. Step 2: Convert to fraction form
    239,034.28/358,548.18 = 81,372.64/x
  3. Step 3: Cross multiply
    239,034.28x = 358,548.18 × 81,372.64
  4. Step 4: Simplify right side
    239,034.28x = 29,176,011,973.80
  5. Step 5: Solve for x
    x = 29,176,011,973.80/239,034.28
  6. Step 6: Final answer
    x = 122,057.86

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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.