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Finding the Fourth Proportional to 80,102.40, 120,162.72 and 23,945.64

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Solution

The fourth proportional to 80,102.40, 120,162.72 and 23,945.64 is: 35,921.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,102.40 : 120,162.72 = 23,945.64 : x
  2. Step 2: Convert to fraction form
    80,102.40/120,162.72 = 23,945.64/x
  3. Step 3: Cross multiply
    80,102.40x = 120,162.72 × 23,945.64
  4. Step 4: Simplify right side
    80,102.40x = 2,877,373,234.54
  5. Step 5: Solve for x
    x = 2,877,373,234.54/80,102.40
  6. Step 6: Final answer
    x = 35,921.19

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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.