Home / 252,121.97-347,928.31-138,944.72

Finding the Fourth Proportional to 252,121.97, 347,928.31 and 138,944.72

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Solution

The fourth proportional to 252,121.97, 347,928.31 and 138,944.72 is: 191,743.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,121.97 : 347,928.31 = 138,944.72 : x
  2. Step 2: Convert to fraction form
    252,121.97/347,928.31 = 138,944.72/x
  3. Step 3: Cross multiply
    252,121.97x = 347,928.31 × 138,944.72
  4. Step 4: Simplify right side
    252,121.97x = 48,342,799,352.34
  5. Step 5: Solve for x
    x = 48,342,799,352.34/252,121.97
  6. Step 6: Final answer
    x = 191,743.70

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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.