Home / 225,732.16-311,489.44-125,121.60

Finding the Fourth Proportional to 225,732.16, 311,489.44 and 125,121.60

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Solution

The fourth proportional to 225,732.16, 311,489.44 and 125,121.60 is: 172,656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,732.16 : 311,489.44 = 125,121.60 : x
  2. Step 2: Convert to fraction form
    225,732.16/311,489.44 = 125,121.60/x
  3. Step 3: Cross multiply
    225,732.16x = 311,489.44 × 125,121.60
  4. Step 4: Simplify right side
    225,732.16x = 38,974,057,115.90
  5. Step 5: Solve for x
    x = 38,974,057,115.90/225,732.16
  6. Step 6: Final answer
    x = 172,656.20

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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.