Home / 198,337.32-273,248.73-137,024.78

Finding the Fourth Proportional to 198,337.32, 273,248.73 and 137,024.78

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Solution

The fourth proportional to 198,337.32, 273,248.73 and 137,024.78 is: 188,778.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,337.32 : 273,248.73 = 137,024.78 : x
  2. Step 2: Convert to fraction form
    198,337.32/273,248.73 = 137,024.78/x
  3. Step 3: Cross multiply
    198,337.32x = 273,248.73 × 137,024.78
  4. Step 4: Simplify right side
    198,337.32x = 37,441,846,805.96
  5. Step 5: Solve for x
    x = 37,441,846,805.96/198,337.32
  6. Step 6: Final answer
    x = 188,778.62

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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.