Home / 198,034.50-273,304.89-108,627.78

Finding the Fourth Proportional to 198,034.50, 273,304.89 and 108,627.78

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Solution

The fourth proportional to 198,034.50, 273,304.89 and 108,627.78 is: 149,915.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,034.50 : 273,304.89 = 108,627.78 : x
  2. Step 2: Convert to fraction form
    198,034.50/273,304.89 = 108,627.78/x
  3. Step 3: Cross multiply
    198,034.50x = 273,304.89 × 108,627.78
  4. Step 4: Simplify right side
    198,034.50x = 29,688,503,463.84
  5. Step 5: Solve for x
    x = 29,688,503,463.84/198,034.50
  6. Step 6: Final answer
    x = 149,915.81

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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.