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Finding the Fourth Proportional to 80,609.60, 120,914.40 and 73,222.40

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Solution

The fourth proportional to 80,609.60, 120,914.40 and 73,222.40 is: 109,833.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,609.60 : 120,914.40 = 73,222.40 : x
  2. Step 2: Convert to fraction form
    80,609.60/120,914.40 = 73,222.40/x
  3. Step 3: Cross multiply
    80,609.60x = 120,914.40 × 73,222.40
  4. Step 4: Simplify right side
    80,609.60x = 8,853,642,562.56
  5. Step 5: Solve for x
    x = 8,853,642,562.56/80,609.60
  6. Step 6: Final answer
    x = 109,833.60

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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.