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Finding the Fourth Proportional to 80,200.70, 120,301.05 and 73,202.30

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Solution

The fourth proportional to 80,200.70, 120,301.05 and 73,202.30 is: 109,803.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,200.70 : 120,301.05 = 73,202.30 : x
  2. Step 2: Convert to fraction form
    80,200.70/120,301.05 = 73,202.30/x
  3. Step 3: Cross multiply
    80,200.70x = 120,301.05 × 73,202.30
  4. Step 4: Simplify right side
    80,200.70x = 8,806,313,552.42
  5. Step 5: Solve for x
    x = 8,806,313,552.42/80,200.70
  6. Step 6: Final answer
    x = 109,803.45

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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.