Home / 115,331.90-172,996.80-36,446.12

Finding the Fourth Proportional to 115,331.90, 172,996.80 and 36,446.12

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Solution

The fourth proportional to 115,331.90, 172,996.80 and 36,446.12 is: 54,668.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,331.90 : 172,996.80 = 36,446.12 : x
  2. Step 2: Convert to fraction form
    115,331.90/172,996.80 = 36,446.12/x
  3. Step 3: Cross multiply
    115,331.90x = 172,996.80 × 36,446.12
  4. Step 4: Simplify right side
    115,331.90x = 6,305,062,132.42
  5. Step 5: Solve for x
    x = 6,305,062,132.42/115,331.90
  6. Step 6: Final answer
    x = 54,668.85

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1.5x scale

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.