Home / 80,199.28-120,340.40-58,194.08

Finding the Fourth Proportional to 80,199.28, 120,340.40 and 58,194.08

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Solution

The fourth proportional to 80,199.28, 120,340.40 and 58,194.08 is: 87,321.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,199.28 : 120,340.40 = 58,194.08 : x
  2. Step 2: Convert to fraction form
    80,199.28/120,340.40 = 58,194.08/x
  3. Step 3: Cross multiply
    80,199.28x = 120,340.40 × 58,194.08
  4. Step 4: Simplify right side
    80,199.28x = 7,003,098,864.83
  5. Step 5: Solve for x
    x = 7,003,098,864.83/80,199.28
  6. Step 6: Final answer
    x = 87,321.22

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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.