Home / 138,769.27-207,935.88-107,256.49

Finding the Fourth Proportional to 138,769.27, 207,935.88 and 107,256.49

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Solution

The fourth proportional to 138,769.27, 207,935.88 and 107,256.49 is: 160,716.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,769.27 : 207,935.88 = 107,256.49 : x
  2. Step 2: Convert to fraction form
    138,769.27/207,935.88 = 107,256.49/x
  3. Step 3: Cross multiply
    138,769.27x = 207,935.88 × 107,256.49
  4. Step 4: Simplify right side
    138,769.27x = 22,302,471,711.81
  5. Step 5: Solve for x
    x = 22,302,471,711.81/138,769.27
  6. Step 6: Final answer
    x = 160,716.22

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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.