Home / 115,049.42-172,615.65-40,180.61

Finding the Fourth Proportional to 115,049.42, 172,615.65 and 40,180.61

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Solution

The fourth proportional to 115,049.42, 172,615.65 and 40,180.61 is: 60,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,049.42 : 172,615.65 = 40,180.61 : x
  2. Step 2: Convert to fraction form
    115,049.42/172,615.65 = 40,180.61/x
  3. Step 3: Cross multiply
    115,049.42x = 172,615.65 × 40,180.61
  4. Step 4: Simplify right side
    115,049.42x = 6,935,801,249.47
  5. Step 5: Solve for x
    x = 6,935,801,249.47/115,049.42
  6. Step 6: Final answer
    x = 60,285.41

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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.