Home / 148,865.10-205,429.59-80,879.10

Finding the Fourth Proportional to 148,865.10, 205,429.59 and 80,879.10

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Solution

The fourth proportional to 148,865.10, 205,429.59 and 80,879.10 is: 111,610.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,865.10 : 205,429.59 = 80,879.10 : x
  2. Step 2: Convert to fraction form
    148,865.10/205,429.59 = 80,879.10/x
  3. Step 3: Cross multiply
    148,865.10x = 205,429.59 × 80,879.10
  4. Step 4: Simplify right side
    148,865.10x = 16,614,960,352.57
  5. Step 5: Solve for x
    x = 16,614,960,352.57/148,865.10
  6. Step 6: Final answer
    x = 111,610.85

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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.