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Finding the Fourth Proportional to 170,147.92, 255,279.12 and 75,364.96

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Solution

The fourth proportional to 170,147.92, 255,279.12 and 75,364.96 is: 113,072.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,147.92 : 255,279.12 = 75,364.96 : x
  2. Step 2: Convert to fraction form
    170,147.92/255,279.12 = 75,364.96/x
  3. Step 3: Cross multiply
    170,147.92x = 255,279.12 × 75,364.96
  4. Step 4: Simplify right side
    170,147.92x = 19,239,100,667.64
  5. Step 5: Solve for x
    x = 19,239,100,667.64/170,147.92
  6. Step 6: Final answer
    x = 113,072.79

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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.