Home / 188,917.33-260,686.06-107,219.60

Finding the Fourth Proportional to 188,917.33, 260,686.06 and 107,219.60

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Solution

The fourth proportional to 188,917.33, 260,686.06 and 107,219.60 is: 147,951.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,917.33 : 260,686.06 = 107,219.60 : x
  2. Step 2: Convert to fraction form
    188,917.33/260,686.06 = 107,219.60/x
  3. Step 3: Cross multiply
    188,917.33x = 260,686.06 × 107,219.60
  4. Step 4: Simplify right side
    188,917.33x = 27,950,655,078.78
  5. Step 5: Solve for x
    x = 27,950,655,078.78/188,917.33
  6. Step 6: Final answer
    x = 147,951.78

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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.