Home / 138,466.05-207,700.72-38,620.18

Finding the Fourth Proportional to 138,466.05, 207,700.72 and 38,620.18

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Solution

The fourth proportional to 138,466.05, 207,700.72 and 38,620.18 is: 57,930.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,466.05 : 207,700.72 = 38,620.18 : x
  2. Step 2: Convert to fraction form
    138,466.05/207,700.72 = 38,620.18/x
  3. Step 3: Cross multiply
    138,466.05x = 207,700.72 × 38,620.18
  4. Step 4: Simplify right side
    138,466.05x = 8,021,439,192.53
  5. Step 5: Solve for x
    x = 8,021,439,192.53/138,466.05
  6. Step 6: Final answer
    x = 57,930.73

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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.