Home / 146,906.10-220,205.55-80,243.70

Finding the Fourth Proportional to 146,906.10, 220,205.55 and 80,243.70

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Solution

The fourth proportional to 146,906.10, 220,205.55 and 80,243.70 is: 120,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,906.10 : 220,205.55 = 80,243.70 : x
  2. Step 2: Convert to fraction form
    146,906.10/220,205.55 = 80,243.70/x
  3. Step 3: Cross multiply
    146,906.10x = 220,205.55 × 80,243.70
  4. Step 4: Simplify right side
    146,906.10x = 17,670,108,092.54
  5. Step 5: Solve for x
    x = 17,670,108,092.54/146,906.10
  6. Step 6: Final answer
    x = 120,281.65

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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.