Home / 138,505.77-207,766.35-43,738.20

Finding the Fourth Proportional to 138,505.77, 207,766.35 and 43,738.20

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Solution

The fourth proportional to 138,505.77, 207,766.35 and 43,738.20 is: 65,609.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,505.77 : 207,766.35 = 43,738.20 : x
  2. Step 2: Convert to fraction form
    138,505.77/207,766.35 = 43,738.20/x
  3. Step 3: Cross multiply
    138,505.77x = 207,766.35 × 43,738.20
  4. Step 4: Simplify right side
    138,505.77x = 9,087,325,950.88
  5. Step 5: Solve for x
    x = 9,087,325,950.88/138,505.77
  6. Step 6: Final answer
    x = 65,609.73

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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.