Home / 120,002.20-180,003.30-53,474.20

Finding the Fourth Proportional to 120,002.20, 180,003.30 and 53,474.20

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Solution

The fourth proportional to 120,002.20, 180,003.30 and 53,474.20 is: 80,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,002.20 : 180,003.30 = 53,474.20 : x
  2. Step 2: Convert to fraction form
    120,002.20/180,003.30 = 53,474.20/x
  3. Step 3: Cross multiply
    120,002.20x = 180,003.30 × 53,474.20
  4. Step 4: Simplify right side
    120,002.20x = 9,625,532,464.86
  5. Step 5: Solve for x
    x = 9,625,532,464.86/120,002.20
  6. Step 6: Final answer
    x = 80,211.30

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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.