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Finding the Fourth Proportional to 135,379.37, 186,825 and 74,951.01

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Solution

The fourth proportional to 135,379.37, 186,825 and 74,951.01 is: 103,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,379.37 : 186,825 = 74,951.01 : x
  2. Step 2: Convert to fraction form
    135,379.37/186,825 = 74,951.01/x
  3. Step 3: Cross multiply
    135,379.37x = 186,825 × 74,951.01
  4. Step 4: Simplify right side
    135,379.37x = 14,002,722,443.25
  5. Step 5: Solve for x
    x = 14,002,722,443.25/135,379.37
  6. Step 6: Final answer
    x = 103,433.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.