Home / 137,439.68-206,156.76-43,945.40

Finding the Fourth Proportional to 137,439.68, 206,156.76 and 43,945.40

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Solution

The fourth proportional to 137,439.68, 206,156.76 and 43,945.40 is: 65,917.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,439.68 : 206,156.76 = 43,945.40 : x
  2. Step 2: Convert to fraction form
    137,439.68/206,156.76 = 43,945.40/x
  3. Step 3: Cross multiply
    137,439.68x = 206,156.76 × 43,945.40
  4. Step 4: Simplify right side
    137,439.68x = 9,059,641,280.90
  5. Step 5: Solve for x
    x = 9,059,641,280.90/137,439.68
  6. Step 6: Final answer
    x = 65,917.22

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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.