Home / 225,976.61-311,867.09-124,021.78

Finding the Fourth Proportional to 225,976.61, 311,867.09 and 124,021.78

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Solution

The fourth proportional to 225,976.61, 311,867.09 and 124,021.78 is: 171,160.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,976.61 : 311,867.09 = 124,021.78 : x
  2. Step 2: Convert to fraction form
    225,976.61/311,867.09 = 124,021.78/x
  3. Step 3: Cross multiply
    225,976.61x = 311,867.09 × 124,021.78
  4. Step 4: Simplify right side
    225,976.61x = 38,678,310,843.76
  5. Step 5: Solve for x
    x = 38,678,310,843.76/225,976.61
  6. Step 6: Final answer
    x = 171,160.68

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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.