Home / 82,236.20-123,354.30-19,906.70

Finding the Fourth Proportional to 82,236.20, 123,354.30 and 19,906.70

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Solution

The fourth proportional to 82,236.20, 123,354.30 and 19,906.70 is: 29,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,236.20 : 123,354.30 = 19,906.70 : x
  2. Step 2: Convert to fraction form
    82,236.20/123,354.30 = 19,906.70/x
  3. Step 3: Cross multiply
    82,236.20x = 123,354.30 × 19,906.70
  4. Step 4: Simplify right side
    82,236.20x = 2,455,577,043.81
  5. Step 5: Solve for x
    x = 2,455,577,043.81/82,236.20
  6. Step 6: Final answer
    x = 29,860.05

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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.