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Finding the Fourth Proportional to 188,744.72, 260,467.79 and 103,861.85

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Solution

The fourth proportional to 188,744.72, 260,467.79 and 103,861.85 is: 143,329.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,744.72 : 260,467.79 = 103,861.85 : x
  2. Step 2: Convert to fraction form
    188,744.72/260,467.79 = 103,861.85/x
  3. Step 3: Cross multiply
    188,744.72x = 260,467.79 × 103,861.85
  4. Step 4: Simplify right side
    188,744.72x = 27,052,664,713.16
  5. Step 5: Solve for x
    x = 27,052,664,713.16/188,744.72
  6. Step 6: Final answer
    x = 143,329.39

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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.