Home / 115,306.28-172,945.11-31,073.03

Finding the Fourth Proportional to 115,306.28, 172,945.11 and 31,073.03

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Solution

The fourth proportional to 115,306.28, 172,945.11 and 31,073.03 is: 46,605.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,306.28 : 172,945.11 = 31,073.03 : x
  2. Step 2: Convert to fraction form
    115,306.28/172,945.11 = 31,073.03/x
  3. Step 3: Cross multiply
    115,306.28x = 172,945.11 × 31,073.03
  4. Step 4: Simplify right side
    115,306.28x = 5,373,928,591.38
  5. Step 5: Solve for x
    x = 5,373,928,591.38/115,306.28
  6. Step 6: Final answer
    x = 46,605.69

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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.