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Finding the Fourth Proportional to 80,524.30, 120,786.45 and 73,266.70

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Solution

The fourth proportional to 80,524.30, 120,786.45 and 73,266.70 is: 109,900.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,524.30 : 120,786.45 = 73,266.70 : x
  2. Step 2: Convert to fraction form
    80,524.30/120,786.45 = 73,266.70/x
  3. Step 3: Cross multiply
    80,524.30x = 120,786.45 × 73,266.70
  4. Step 4: Simplify right side
    80,524.30x = 8,849,624,596.22
  5. Step 5: Solve for x
    x = 8,849,624,596.22/80,524.30
  6. Step 6: Final answer
    x = 109,900.05

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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.