Home / 138,358.28-207,537.47-106,814.39

Finding the Fourth Proportional to 138,358.28, 207,537.47 and 106,814.39

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Solution

The fourth proportional to 138,358.28, 207,537.47 and 106,814.39 is: 160,221.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,358.28 : 207,537.47 = 106,814.39 : x
  2. Step 2: Convert to fraction form
    138,358.28/207,537.47 = 106,814.39/x
  3. Step 3: Cross multiply
    138,358.28x = 207,537.47 × 106,814.39
  4. Step 4: Simplify right side
    138,358.28x = 22,167,986,688.43
  5. Step 5: Solve for x
    x = 22,167,986,688.43/138,358.28
  6. Step 6: Final answer
    x = 160,221.62

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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.