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Finding the Fourth Proportional to 188,839.50, 282,879.36 and 87,495.54

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Solution

The fourth proportional to 188,839.50, 282,879.36 and 87,495.54 is: 131,067.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,839.50 : 282,879.36 = 87,495.54 : x
  2. Step 2: Convert to fraction form
    188,839.50/282,879.36 = 87,495.54/x
  3. Step 3: Cross multiply
    188,839.50x = 282,879.36 × 87,495.54
  4. Step 4: Simplify right side
    188,839.50x = 24,750,682,358.05
  5. Step 5: Solve for x
    x = 24,750,682,358.05/188,839.50
  6. Step 6: Final answer
    x = 131,067.29

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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.