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Finding the Fourth Proportional to 135,508.05, 203,448.24 and 68,992.83

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Solution

The fourth proportional to 135,508.05, 203,448.24 and 68,992.83 is: 103,584.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,508.05 : 203,448.24 = 68,992.83 : x
  2. Step 2: Convert to fraction form
    135,508.05/203,448.24 = 68,992.83/x
  3. Step 3: Cross multiply
    135,508.05x = 203,448.24 × 68,992.83
  4. Step 4: Simplify right side
    135,508.05x = 14,036,469,836.12
  5. Step 5: Solve for x
    x = 14,036,469,836.12/135,508.05
  6. Step 6: Final answer
    x = 103,584.03

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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.