Home / 138,170.13-207,255.24-49,418.33

Finding the Fourth Proportional to 138,170.13, 207,255.24 and 49,418.33

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Solution

The fourth proportional to 138,170.13, 207,255.24 and 49,418.33 is: 74,127.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,170.13 : 207,255.24 = 49,418.33 : x
  2. Step 2: Convert to fraction form
    138,170.13/207,255.24 = 49,418.33/x
  3. Step 3: Cross multiply
    138,170.13x = 207,255.24 × 49,418.33
  4. Step 4: Simplify right side
    138,170.13x = 10,242,206,808.27
  5. Step 5: Solve for x
    x = 10,242,206,808.27/138,170.13
  6. Step 6: Final answer
    x = 74,127.51

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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.