Home / 141,819.62-195,715.17-78,161.52

Finding the Fourth Proportional to 141,819.62, 195,715.17 and 78,161.52

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Solution

The fourth proportional to 141,819.62, 195,715.17 and 78,161.52 is: 107,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,819.62 : 195,715.17 = 78,161.52 : x
  2. Step 2: Convert to fraction form
    141,819.62/195,715.17 = 78,161.52/x
  3. Step 3: Cross multiply
    141,819.62x = 195,715.17 × 78,161.52
  4. Step 4: Simplify right side
    141,819.62x = 15,297,395,174.26
  5. Step 5: Solve for x
    x = 15,297,395,174.26/141,819.62
  6. Step 6: Final answer
    x = 107,865.15

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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.