Home / 138,478.06-207,725.37-43,711.30

Finding the Fourth Proportional to 138,478.06, 207,725.37 and 43,711.30

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Solution

The fourth proportional to 138,478.06, 207,725.37 and 43,711.30 is: 65,569.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,478.06 : 207,725.37 = 43,711.30 : x
  2. Step 2: Convert to fraction form
    138,478.06/207,725.37 = 43,711.30/x
  3. Step 3: Cross multiply
    138,478.06x = 207,725.37 × 43,711.30
  4. Step 4: Simplify right side
    138,478.06x = 9,079,945,965.68
  5. Step 5: Solve for x
    x = 9,079,945,965.68/138,478.06
  6. Step 6: Final answer
    x = 65,569.56

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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.