Home / 138,180.22-207,270.33-38,340.43

Finding the Fourth Proportional to 138,180.22, 207,270.33 and 38,340.43

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Solution

The fourth proportional to 138,180.22, 207,270.33 and 38,340.43 is: 57,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,180.22 : 207,270.33 = 38,340.43 : x
  2. Step 2: Convert to fraction form
    138,180.22/207,270.33 = 38,340.43/x
  3. Step 3: Cross multiply
    138,180.22x = 207,270.33 × 38,340.43
  4. Step 4: Simplify right side
    138,180.22x = 7,946,833,578.44
  5. Step 5: Solve for x
    x = 7,946,833,578.44/138,180.22
  6. Step 6: Final answer
    x = 57,510.65

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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.