Home / 221,426.10-332,171.55-71,640.90

Finding the Fourth Proportional to 221,426.10, 332,171.55 and 71,640.90

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Solution

The fourth proportional to 221,426.10, 332,171.55 and 71,640.90 is: 107,471.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,426.10 : 332,171.55 = 71,640.90 : x
  2. Step 2: Convert to fraction form
    221,426.10/332,171.55 = 71,640.90/x
  3. Step 3: Cross multiply
    221,426.10x = 332,171.55 × 71,640.90
  4. Step 4: Simplify right side
    221,426.10x = 23,797,068,796.40
  5. Step 5: Solve for x
    x = 23,797,068,796.40/221,426.10
  6. Step 6: Final answer
    x = 107,471.83

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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.