Home / 115,330.20-172,995.30-92,002.20

Finding the Fourth Proportional to 115,330.20, 172,995.30 and 92,002.20

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Solution

The fourth proportional to 115,330.20, 172,995.30 and 92,002.20 is: 138,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,330.20 : 172,995.30 = 92,002.20 : x
  2. Step 2: Convert to fraction form
    115,330.20/172,995.30 = 92,002.20/x
  3. Step 3: Cross multiply
    115,330.20x = 172,995.30 × 92,002.20
  4. Step 4: Simplify right side
    115,330.20x = 15,915,948,189.66
  5. Step 5: Solve for x
    x = 15,915,948,189.66/115,330.20
  6. Step 6: Final answer
    x = 138,003.30

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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.