Home / 225,747.12-311,534.46-123,781.92

Finding the Fourth Proportional to 225,747.12, 311,534.46 and 123,781.92

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Solution

The fourth proportional to 225,747.12, 311,534.46 and 123,781.92 is: 170,820.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,747.12 : 311,534.46 = 123,781.92 : x
  2. Step 2: Convert to fraction form
    225,747.12/311,534.46 = 123,781.92/x
  3. Step 3: Cross multiply
    225,747.12x = 311,534.46 × 123,781.92
  4. Step 4: Simplify right side
    225,747.12x = 38,562,333,604.96
  5. Step 5: Solve for x
    x = 38,562,333,604.96/225,747.12
  6. Step 6: Final answer
    x = 170,820.93

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1.5x scale

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.