Home / 120,195.09-180,195.44-50,126.85

Finding the Fourth Proportional to 120,195.09, 180,195.44 and 50,126.85

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Solution

The fourth proportional to 120,195.09, 180,195.44 and 50,126.85 is: 75,149.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,195.09 : 180,195.44 = 50,126.85 : x
  2. Step 2: Convert to fraction form
    120,195.09/180,195.44 = 50,126.85/x
  3. Step 3: Cross multiply
    120,195.09x = 180,195.44 × 50,126.85
  4. Step 4: Simplify right side
    120,195.09x = 9,032,629,540.93
  5. Step 5: Solve for x
    x = 9,032,629,540.93/120,195.09
  6. Step 6: Final answer
    x = 75,149.74

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1.5x scale

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.