Home / 189,321.96-261,255.51-108,692.73

Finding the Fourth Proportional to 189,321.96, 261,255.51 and 108,692.73

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Solution

The fourth proportional to 189,321.96, 261,255.51 and 108,692.73 is: 149,990.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,321.96 : 261,255.51 = 108,692.73 : x
  2. Step 2: Convert to fraction form
    189,321.96/261,255.51 = 108,692.73/x
  3. Step 3: Cross multiply
    189,321.96x = 261,255.51 × 108,692.73
  4. Step 4: Simplify right side
    189,321.96x = 28,396,574,609.44
  5. Step 5: Solve for x
    x = 28,396,574,609.44/189,321.96
  6. Step 6: Final answer
    x = 149,990.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.