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Finding the Fourth Proportional to 109,082.80, 163,624.20 and 53,786.80

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Solution

The fourth proportional to 109,082.80, 163,624.20 and 53,786.80 is: 80,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,082.80 : 163,624.20 = 53,786.80 : x
  2. Step 2: Convert to fraction form
    109,082.80/163,624.20 = 53,786.80/x
  3. Step 3: Cross multiply
    109,082.80x = 163,624.20 × 53,786.80
  4. Step 4: Simplify right side
    109,082.80x = 8,800,822,120.56
  5. Step 5: Solve for x
    x = 8,800,822,120.56/109,082.80
  6. Step 6: Final answer
    x = 80,680.20

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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.