Home / 239,123.60-329,977.92-137,143.80

Finding the Fourth Proportional to 239,123.60, 329,977.92 and 137,143.80

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Solution

The fourth proportional to 239,123.60, 329,977.92 and 137,143.80 is: 189,251.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,123.60 : 329,977.92 = 137,143.80 : x
  2. Step 2: Convert to fraction form
    239,123.60/329,977.92 = 137,143.80/x
  3. Step 3: Cross multiply
    239,123.60x = 329,977.92 × 137,143.80
  4. Step 4: Simplify right side
    239,123.60x = 45,254,425,864.90
  5. Step 5: Solve for x
    x = 45,254,425,864.90/239,123.60
  6. Step 6: Final answer
    x = 189,251.19

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1.5x scale

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.