Home / 188,911.35-260,631.72-107,229.87

Finding the Fourth Proportional to 188,911.35, 260,631.72 and 107,229.87

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Solution

The fourth proportional to 188,911.35, 260,631.72 and 107,229.87 is: 147,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,911.35 : 260,631.72 = 107,229.87 : x
  2. Step 2: Convert to fraction form
    188,911.35/260,631.72 = 107,229.87/x
  3. Step 3: Cross multiply
    188,911.35x = 260,631.72 × 107,229.87
  4. Step 4: Simplify right side
    188,911.35x = 27,947,505,453.48
  5. Step 5: Solve for x
    x = 27,947,505,453.48/188,911.35
  6. Step 6: Final answer
    x = 147,939.79

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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.