Home / 138,042.06-207,067.73-38,193.90

Finding the Fourth Proportional to 138,042.06, 207,067.73 and 38,193.90

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Solution

The fourth proportional to 138,042.06, 207,067.73 and 38,193.90 is: 57,292.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,042.06 : 207,067.73 = 38,193.90 : x
  2. Step 2: Convert to fraction form
    138,042.06/207,067.73 = 38,193.90/x
  3. Step 3: Cross multiply
    138,042.06x = 207,067.73 × 38,193.90
  4. Step 4: Simplify right side
    138,042.06x = 7,908,723,981.88
  5. Step 5: Solve for x
    x = 7,908,723,981.88/138,042.06
  6. Step 6: Final answer
    x = 57,292.13

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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.