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Finding the Fourth Proportional to 80,108.20, 120,173.10 and 27,533.80

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Solution

The fourth proportional to 80,108.20, 120,173.10 and 27,533.80 is: 41,304.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,108.20 : 120,173.10 = 27,533.80 : x
  2. Step 2: Convert to fraction form
    80,108.20/120,173.10 = 27,533.80/x
  3. Step 3: Cross multiply
    80,108.20x = 120,173.10 × 27,533.80
  4. Step 4: Simplify right side
    80,108.20x = 3,308,822,100.78
  5. Step 5: Solve for x
    x = 3,308,822,100.78/80,108.20
  6. Step 6: Final answer
    x = 41,304.41

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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.