Home / 141,850.70-195,753.97-78,189.87

Finding the Fourth Proportional to 141,850.70, 195,753.97 and 78,189.87

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Solution

The fourth proportional to 141,850.70, 195,753.97 and 78,189.87 is: 107,902.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,850.70 : 195,753.97 = 78,189.87 : x
  2. Step 2: Convert to fraction form
    141,850.70/195,753.97 = 78,189.87/x
  3. Step 3: Cross multiply
    141,850.70x = 195,753.97 × 78,189.87
  4. Step 4: Simplify right side
    141,850.70x = 15,305,977,466.28
  5. Step 5: Solve for x
    x = 15,305,977,466.28/141,850.70
  6. Step 6: Final answer
    x = 107,902.02

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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.