Home / 115,180.20-172,758.96-40,286.52

Finding the Fourth Proportional to 115,180.20, 172,758.96 and 40,286.52

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Solution

The fourth proportional to 115,180.20, 172,758.96 and 40,286.52 is: 60,425.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,180.20 : 172,758.96 = 40,286.52 : x
  2. Step 2: Convert to fraction form
    115,180.20/172,758.96 = 40,286.52/x
  3. Step 3: Cross multiply
    115,180.20x = 172,758.96 × 40,286.52
  4. Step 4: Simplify right side
    115,180.20x = 6,959,857,297.22
  5. Step 5: Solve for x
    x = 6,959,857,297.22/115,180.20
  6. Step 6: Final answer
    x = 60,425.81

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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.