Home / 80,195.28-120,334.40-58,190.08

Finding the Fourth Proportional to 80,195.28, 120,334.40 and 58,190.08

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Solution

The fourth proportional to 80,195.28, 120,334.40 and 58,190.08 is: 87,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,195.28 : 120,334.40 = 58,190.08 : x
  2. Step 2: Convert to fraction form
    80,195.28/120,334.40 = 58,190.08/x
  3. Step 3: Cross multiply
    80,195.28x = 120,334.40 × 58,190.08
  4. Step 4: Simplify right side
    80,195.28x = 7,002,268,362.75
  5. Step 5: Solve for x
    x = 7,002,268,362.75/80,195.28
  6. Step 6: Final answer
    x = 87,315.22

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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.