Home / 138,137.18-207,185.22-38,286.95

Finding the Fourth Proportional to 138,137.18, 207,185.22 and 38,286.95

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Solution

The fourth proportional to 138,137.18, 207,185.22 and 38,286.95 is: 57,424.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,137.18 : 207,185.22 = 38,286.95 : x
  2. Step 2: Convert to fraction form
    138,137.18/207,185.22 = 38,286.95/x
  3. Step 3: Cross multiply
    138,137.18x = 207,185.22 × 38,286.95
  4. Step 4: Simplify right side
    138,137.18x = 7,932,489,122.95
  5. Step 5: Solve for x
    x = 7,932,489,122.95/138,137.18
  6. Step 6: Final answer
    x = 57,424.72

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1.5x scale

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.