Home / 138,660.27-207,990.41-38,835.26

Finding the Fourth Proportional to 138,660.27, 207,990.41 and 38,835.26

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Solution

The fourth proportional to 138,660.27, 207,990.41 and 38,835.26 is: 58,252.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,660.27 : 207,990.41 = 38,835.26 : x
  2. Step 2: Convert to fraction form
    138,660.27/207,990.41 = 38,835.26/x
  3. Step 3: Cross multiply
    138,660.27x = 207,990.41 × 38,835.26
  4. Step 4: Simplify right side
    138,660.27x = 8,077,361,195.69
  5. Step 5: Solve for x
    x = 8,077,361,195.69/138,660.27
  6. Step 6: Final answer
    x = 58,252.89

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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.