Home / 148,708.24-205,218.97-80,725.85

Finding the Fourth Proportional to 148,708.24, 205,218.97 and 80,725.85

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Solution

The fourth proportional to 148,708.24, 205,218.97 and 80,725.85 is: 111,402.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,708.24 : 205,218.97 = 80,725.85 : x
  2. Step 2: Convert to fraction form
    148,708.24/205,218.97 = 80,725.85/x
  3. Step 3: Cross multiply
    148,708.24x = 205,218.97 × 80,725.85
  4. Step 4: Simplify right side
    148,708.24x = 16,566,475,331.04
  5. Step 5: Solve for x
    x = 16,566,475,331.04/148,708.24
  6. Step 6: Final answer
    x = 111,402.54

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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.