Home / 138,127.40-207,170.60-38,277.18

Finding the Fourth Proportional to 138,127.40, 207,170.60 and 38,277.18

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Solution

The fourth proportional to 138,127.40, 207,170.60 and 38,277.18 is: 57,410.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,127.40 : 207,170.60 = 38,277.18 : x
  2. Step 2: Convert to fraction form
    138,127.40/207,170.60 = 38,277.18/x
  3. Step 3: Cross multiply
    138,127.40x = 207,170.60 × 38,277.18
  4. Step 4: Simplify right side
    138,127.40x = 7,929,906,543.97
  5. Step 5: Solve for x
    x = 7,929,906,543.97/138,127.40
  6. Step 6: Final answer
    x = 57,410.09

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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.