Home / 141,982.62-195,936.03-78,320.58

Finding the Fourth Proportional to 141,982.62, 195,936.03 and 78,320.58

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Solution

The fourth proportional to 141,982.62, 195,936.03 and 78,320.58 is: 108,082.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,982.62 : 195,936.03 = 78,320.58 : x
  2. Step 2: Convert to fraction form
    141,982.62/195,936.03 = 78,320.58/x
  3. Step 3: Cross multiply
    141,982.62x = 195,936.03 × 78,320.58
  4. Step 4: Simplify right side
    141,982.62x = 15,345,823,512.50
  5. Step 5: Solve for x
    x = 15,345,823,512.50/141,982.62
  6. Step 6: Final answer
    x = 108,082.41

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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.