Home / 120,218.97-180,344.86-50,081.88

Finding the Fourth Proportional to 120,218.97, 180,344.86 and 50,081.88

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Solution

The fourth proportional to 120,218.97, 180,344.86 and 50,081.88 is: 75,129.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,218.97 : 180,344.86 = 50,081.88 : x
  2. Step 2: Convert to fraction form
    120,218.97/180,344.86 = 50,081.88/x
  3. Step 3: Cross multiply
    120,218.97x = 180,344.86 × 50,081.88
  4. Step 4: Simplify right side
    120,218.97x = 9,032,008,735.41
  5. Step 5: Solve for x
    x = 9,032,008,735.41/120,218.97
  6. Step 6: Final answer
    x = 75,129.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.