Home / 80,126.08-120,104.36-30,184.56

Finding the Fourth Proportional to 80,126.08, 120,104.36 and 30,184.56

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Solution

The fourth proportional to 80,126.08, 120,104.36 and 30,184.56 is: 45,244.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,126.08 : 120,104.36 = 30,184.56 : x
  2. Step 2: Convert to fraction form
    80,126.08/120,104.36 = 30,184.56/x
  3. Step 3: Cross multiply
    80,126.08x = 120,104.36 × 30,184.56
  4. Step 4: Simplify right side
    80,126.08x = 3,625,297,260.68
  5. Step 5: Solve for x
    x = 3,625,297,260.68/80,126.08
  6. Step 6: Final answer
    x = 45,244.91

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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.