Home / 148,828.33-205,379.65-80,843.78

Finding the Fourth Proportional to 148,828.33, 205,379.65 and 80,843.78

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Solution

The fourth proportional to 148,828.33, 205,379.65 and 80,843.78 is: 111,562.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,828.33 : 205,379.65 = 80,843.78 : x
  2. Step 2: Convert to fraction form
    148,828.33/205,379.65 = 80,843.78/x
  3. Step 3: Cross multiply
    148,828.33x = 205,379.65 × 80,843.78
  4. Step 4: Simplify right side
    148,828.33x = 16,603,667,241.08
  5. Step 5: Solve for x
    x = 16,603,667,241.08/148,828.33
  6. Step 6: Final answer
    x = 111,562.54

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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.