Home / 141,408.20-195,144.05-77,750.10

Finding the Fourth Proportional to 141,408.20, 195,144.05 and 77,750.10

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Solution

The fourth proportional to 141,408.20, 195,144.05 and 77,750.10 is: 107,295.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,408.20 : 195,144.05 = 77,750.10 : x
  2. Step 2: Convert to fraction form
    141,408.20/195,144.05 = 77,750.10/x
  3. Step 3: Cross multiply
    141,408.20x = 195,144.05 × 77,750.10
  4. Step 4: Simplify right side
    141,408.20x = 15,172,469,596.28
  5. Step 5: Solve for x
    x = 15,172,469,596.28/141,408.20
  6. Step 6: Final answer
    x = 107,295.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.