Home / 141,972.56-195,922.68-78,309.44

Finding the Fourth Proportional to 141,972.56, 195,922.68 and 78,309.44

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Solution

The fourth proportional to 141,972.56, 195,922.68 and 78,309.44 is: 108,067.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,972.56 : 195,922.68 = 78,309.44 : x
  2. Step 2: Convert to fraction form
    141,972.56/195,922.68 = 78,309.44/x
  3. Step 3: Cross multiply
    141,972.56x = 195,922.68 × 78,309.44
  4. Step 4: Simplify right side
    141,972.56x = 15,342,595,354.10
  5. Step 5: Solve for x
    x = 15,342,595,354.10/141,972.56
  6. Step 6: Final answer
    x = 108,067.33

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1.5x scale

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.