Home / 129,093.10-193,542.45-54,151.90

Finding the Fourth Proportional to 129,093.10, 193,542.45 and 54,151.90

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Solution

The fourth proportional to 129,093.10, 193,542.45 and 54,151.90 is: 81,187.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,093.10 : 193,542.45 = 54,151.90 : x
  2. Step 2: Convert to fraction form
    129,093.10/193,542.45 = 54,151.90/x
  3. Step 3: Cross multiply
    129,093.10x = 193,542.45 × 54,151.90
  4. Step 4: Simplify right side
    129,093.10x = 10,480,691,398.16
  5. Step 5: Solve for x
    x = 10,480,691,398.16/129,093.10
  6. Step 6: Final answer
    x = 81,187.08

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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.