Home / 141,990.56-195,947.52-78,327.44

Finding the Fourth Proportional to 141,990.56, 195,947.52 and 78,327.44

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Solution

The fourth proportional to 141,990.56, 195,947.52 and 78,327.44 is: 108,092.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,990.56 : 195,947.52 = 78,327.44 : x
  2. Step 2: Convert to fraction form
    141,990.56/195,947.52 = 78,327.44/x
  3. Step 3: Cross multiply
    141,990.56x = 195,947.52 × 78,327.44
  4. Step 4: Simplify right side
    141,990.56x = 15,348,067,615.95
  5. Step 5: Solve for x
    x = 15,348,067,615.95/141,990.56
  6. Step 6: Final answer
    x = 108,092.17

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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.