Home / 141,640.89-195,468.30-77,982.60

Finding the Fourth Proportional to 141,640.89, 195,468.30 and 77,982.60

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Solution

The fourth proportional to 141,640.89, 195,468.30 and 77,982.60 is: 107,618.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,640.89 : 195,468.30 = 77,982.60 : x
  2. Step 2: Convert to fraction form
    141,640.89/195,468.30 = 77,982.60/x
  3. Step 3: Cross multiply
    141,640.89x = 195,468.30 × 77,982.60
  4. Step 4: Simplify right side
    141,640.89x = 15,243,126,251.58
  5. Step 5: Solve for x
    x = 15,243,126,251.58/141,640.89
  6. Step 6: Final answer
    x = 107,618.12

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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.