Home / 151,708.20-227,708.10-76,912.80

Finding the Fourth Proportional to 151,708.20, 227,708.10 and 76,912.80

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Solution

The fourth proportional to 151,708.20, 227,708.10 and 76,912.80 is: 115,443.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,708.20 : 227,708.10 = 76,912.80 : x
  2. Step 2: Convert to fraction form
    151,708.20/227,708.10 = 76,912.80/x
  3. Step 3: Cross multiply
    151,708.20x = 227,708.10 × 76,912.80
  4. Step 4: Simplify right side
    151,708.20x = 17,513,667,553.68
  5. Step 5: Solve for x
    x = 17,513,667,553.68/151,708.20
  6. Step 6: Final answer
    x = 115,443.12

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1.5x scale

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.