Home / 252,115.30-347,917.98-138,937.78

Finding the Fourth Proportional to 252,115.30, 347,917.98 and 138,937.78

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Solution

The fourth proportional to 252,115.30, 347,917.98 and 138,937.78 is: 191,733.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,115.30 : 347,917.98 = 138,937.78 : x
  2. Step 2: Convert to fraction form
    252,115.30/347,917.98 = 138,937.78/x
  3. Step 3: Cross multiply
    252,115.30x = 347,917.98 × 138,937.78
  4. Step 4: Simplify right side
    252,115.30x = 48,338,951,763.28
  5. Step 5: Solve for x
    x = 48,338,951,763.28/252,115.30
  6. Step 6: Final answer
    x = 191,733.51

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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.