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Finding the Fourth Proportional to 135,245.88, 202,879.37 and 45,288.92

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Solution

The fourth proportional to 135,245.88, 202,879.37 and 45,288.92 is: 67,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,245.88 : 202,879.37 = 45,288.92 : x
  2. Step 2: Convert to fraction form
    135,245.88/202,879.37 = 45,288.92/x
  3. Step 3: Cross multiply
    135,245.88x = 202,879.37 × 45,288.92
  4. Step 4: Simplify right side
    135,245.88x = 9,188,188,178.00
  5. Step 5: Solve for x
    x = 9,188,188,178.00/135,245.88
  6. Step 6: Final answer
    x = 67,936.92

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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.