Home / 141,990.14-195,947.03-78,327.92

Finding the Fourth Proportional to 141,990.14, 195,947.03 and 78,327.92

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Solution

The fourth proportional to 141,990.14, 195,947.03 and 78,327.92 is: 108,092.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,990.14 : 195,947.03 = 78,327.92 : x
  2. Step 2: Convert to fraction form
    141,990.14/195,947.03 = 78,327.92/x
  3. Step 3: Cross multiply
    141,990.14x = 195,947.03 × 78,327.92
  4. Step 4: Simplify right side
    141,990.14x = 15,348,122,310.34
  5. Step 5: Solve for x
    x = 15,348,122,310.34/141,990.14
  6. Step 6: Final answer
    x = 108,092.88

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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.