Home / 137,439.43-205,922.46-107,442

Finding the Fourth Proportional to 137,439.43, 205,922.46 and 107,442

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Solution

The fourth proportional to 137,439.43, 205,922.46 and 107,442 is: 160,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,439.43 : 205,922.46 = 107,442 : x
  2. Step 2: Convert to fraction form
    137,439.43/205,922.46 = 107,442/x
  3. Step 3: Cross multiply
    137,439.43x = 205,922.46 × 107,442
  4. Step 4: Simplify right side
    137,439.43x = 22,124,720,947.32
  5. Step 5: Solve for x
    x = 22,124,720,947.32/137,439.43
  6. Step 6: Final answer
    x = 160,977.97

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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.