Home / 146,745.12-220,247.28-80,245.92

Finding the Fourth Proportional to 146,745.12, 220,247.28 and 80,245.92

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Solution

The fourth proportional to 146,745.12, 220,247.28 and 80,245.92 is: 120,439.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,745.12 : 220,247.28 = 80,245.92 : x
  2. Step 2: Convert to fraction form
    146,745.12/220,247.28 = 80,245.92/x
  3. Step 3: Cross multiply
    146,745.12x = 220,247.28 × 80,245.92
  4. Step 4: Simplify right side
    146,745.12x = 17,673,945,611.10
  5. Step 5: Solve for x
    x = 17,673,945,611.10/146,745.12
  6. Step 6: Final answer
    x = 120,439.75

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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.