Home / 148,890.24-205,469.37-80,907.78

Finding the Fourth Proportional to 148,890.24, 205,469.37 and 80,907.78

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Solution

The fourth proportional to 148,890.24, 205,469.37 and 80,907.78 is: 111,653.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,890.24 : 205,469.37 = 80,907.78 : x
  2. Step 2: Convert to fraction form
    148,890.24/205,469.37 = 80,907.78/x
  3. Step 3: Cross multiply
    148,890.24x = 205,469.37 × 80,907.78
  4. Step 4: Simplify right side
    148,890.24x = 16,624,070,584.70
  5. Step 5: Solve for x
    x = 16,624,070,584.70/148,890.24
  6. Step 6: Final answer
    x = 111,653.19

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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.