Home / 132,919.20-199,310.40-39,412.80

Finding the Fourth Proportional to 132,919.20, 199,310.40 and 39,412.80

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Solution

The fourth proportional to 132,919.20, 199,310.40 and 39,412.80 is: 59,098.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,919.20 : 199,310.40 = 39,412.80 : x
  2. Step 2: Convert to fraction form
    132,919.20/199,310.40 = 39,412.80/x
  3. Step 3: Cross multiply
    132,919.20x = 199,310.40 × 39,412.80
  4. Step 4: Simplify right side
    132,919.20x = 7,855,380,933.12
  5. Step 5: Solve for x
    x = 7,855,380,933.12/132,919.20
  6. Step 6: Final answer
    x = 59,098.92

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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.