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Finding the Fourth Proportional to 110,920.20, 166,380.30 and 66,524.10

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Solution

The fourth proportional to 110,920.20, 166,380.30 and 66,524.10 is: 99,786.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,920.20 : 166,380.30 = 66,524.10 : x
  2. Step 2: Convert to fraction form
    110,920.20/166,380.30 = 66,524.10/x
  3. Step 3: Cross multiply
    110,920.20x = 166,380.30 × 66,524.10
  4. Step 4: Simplify right side
    110,920.20x = 11,068,299,715.23
  5. Step 5: Solve for x
    x = 11,068,299,715.23/110,920.20
  6. Step 6: Final answer
    x = 99,786.15

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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.