Home / 144,177.52-215,976.30-71,912.56

Finding the Fourth Proportional to 144,177.52, 215,976.30 and 71,912.56

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Solution

The fourth proportional to 144,177.52, 215,976.30 and 71,912.56 is: 107,724.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,177.52 : 215,976.30 = 71,912.56 : x
  2. Step 2: Convert to fraction form
    144,177.52/215,976.30 = 71,912.56/x
  3. Step 3: Cross multiply
    144,177.52x = 215,976.30 × 71,912.56
  4. Step 4: Simplify right side
    144,177.52x = 15,531,408,632.33
  5. Step 5: Solve for x
    x = 15,531,408,632.33/144,177.52
  6. Step 6: Final answer
    x = 107,724.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.