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Finding the Fourth Proportional to 80,096.78, 120,145.48 and 75,225.24

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Solution

The fourth proportional to 80,096.78, 120,145.48 and 75,225.24 is: 112,838.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,096.78 : 120,145.48 = 75,225.24 : x
  2. Step 2: Convert to fraction form
    80,096.78/120,145.48 = 75,225.24/x
  3. Step 3: Cross multiply
    80,096.78x = 120,145.48 × 75,225.24
  4. Step 4: Simplify right side
    80,096.78x = 9,037,972,379.85
  5. Step 5: Solve for x
    x = 9,037,972,379.85/80,096.78
  6. Step 6: Final answer
    x = 112,838.15

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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.