Home / 238,562.05-329,211.94-131,129.78

Finding the Fourth Proportional to 238,562.05, 329,211.94 and 131,129.78

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Solution

The fourth proportional to 238,562.05, 329,211.94 and 131,129.78 is: 180,957.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,562.05 : 329,211.94 = 131,129.78 : x
  2. Step 2: Convert to fraction form
    238,562.05/329,211.94 = 131,129.78/x
  3. Step 3: Cross multiply
    238,562.05x = 329,211.94 × 131,129.78
  4. Step 4: Simplify right side
    238,562.05x = 43,169,486,963.86
  5. Step 5: Solve for x
    x = 43,169,486,963.86/238,562.05
  6. Step 6: Final answer
    x = 180,957.06

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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.