Home / 80,119.00-120,169.32-20,960.38

Finding the Fourth Proportional to 80,119.00, 120,169.32 and 20,960.38

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Solution

The fourth proportional to 80,119.00, 120,169.32 and 20,960.38 is: 31,438.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,119.00 : 120,169.32 = 20,960.38 : x
  2. Step 2: Convert to fraction form
    80,119.00/120,169.32 = 20,960.38/x
  3. Step 3: Cross multiply
    80,119.00x = 120,169.32 × 20,960.38
  4. Step 4: Simplify right side
    80,119.00x = 2,518,794,232.52
  5. Step 5: Solve for x
    x = 2,518,794,232.52/80,119.00
  6. Step 6: Final answer
    x = 31,438.16

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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.