Home / 115,240.24-172,845.78-45,168.76

Finding the Fourth Proportional to 115,240.24, 172,845.78 and 45,168.76

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Solution

The fourth proportional to 115,240.24, 172,845.78 and 45,168.76 is: 67,747.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,240.24 : 172,845.78 = 45,168.76 : x
  2. Step 2: Convert to fraction form
    115,240.24/172,845.78 = 45,168.76/x
  3. Step 3: Cross multiply
    115,240.24x = 172,845.78 × 45,168.76
  4. Step 4: Simplify right side
    115,240.24x = 7,807,229,553.83
  5. Step 5: Solve for x
    x = 7,807,229,553.83/115,240.24
  6. Step 6: Final answer
    x = 67,747.43

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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.