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Finding the Fourth Proportional to 132,820.32, 199,230.80 and 39,327.20

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Solution

The fourth proportional to 132,820.32, 199,230.80 and 39,327.20 is: 58,990.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,820.32 : 199,230.80 = 39,327.20 : x
  2. Step 2: Convert to fraction form
    132,820.32/199,230.80 = 39,327.20/x
  3. Step 3: Cross multiply
    132,820.32x = 199,230.80 × 39,327.20
  4. Step 4: Simplify right side
    132,820.32x = 7,835,189,517.76
  5. Step 5: Solve for x
    x = 7,835,189,517.76/132,820.32
  6. Step 6: Final answer
    x = 58,990.89

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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.