Home / 137,436.43-205,917.96-107,439

Finding the Fourth Proportional to 137,436.43, 205,917.96 and 107,439

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Solution

The fourth proportional to 137,436.43, 205,917.96 and 107,439 is: 160,973.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,436.43 : 205,917.96 = 107,439 : x
  2. Step 2: Convert to fraction form
    137,436.43/205,917.96 = 107,439/x
  3. Step 3: Cross multiply
    137,436.43x = 205,917.96 × 107,439
  4. Step 4: Simplify right side
    137,436.43x = 22,123,619,704.44
  5. Step 5: Solve for x
    x = 22,123,619,704.44/137,436.43
  6. Step 6: Final answer
    x = 160,973.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.