Home / 138,077.92-207,024.61-111,456.66

Finding the Fourth Proportional to 138,077.92, 207,024.61 and 111,456.66

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Solution

The fourth proportional to 138,077.92, 207,024.61 and 111,456.66 is: 167,110.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,077.92 : 207,024.61 = 111,456.66 : x
  2. Step 2: Convert to fraction form
    138,077.92/207,024.61 = 111,456.66/x
  3. Step 3: Cross multiply
    138,077.92x = 207,024.61 × 111,456.66
  4. Step 4: Simplify right side
    138,077.92x = 23,074,271,110.57
  5. Step 5: Solve for x
    x = 23,074,271,110.57/138,077.92
  6. Step 6: Final answer
    x = 167,110.51

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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.