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Finding the Fourth Proportional to 141,481.88, 195,240.88 and 77,819.66

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Solution

The fourth proportional to 141,481.88, 195,240.88 and 77,819.66 is: 107,388.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,481.88 : 195,240.88 = 77,819.66 : x
  2. Step 2: Convert to fraction form
    141,481.88/195,240.88 = 77,819.66/x
  3. Step 3: Cross multiply
    141,481.88x = 195,240.88 × 77,819.66
  4. Step 4: Simplify right side
    141,481.88x = 15,193,578,217.05
  5. Step 5: Solve for x
    x = 15,193,578,217.05/141,481.88
  6. Step 6: Final answer
    x = 107,388.86

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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.