Home / 203,308.38-280,575.09-126,872.73

Finding the Fourth Proportional to 203,308.38, 280,575.09 and 126,872.73

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Solution

The fourth proportional to 203,308.38, 280,575.09 and 126,872.73 is: 175,090.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,308.38 : 280,575.09 = 126,872.73 : x
  2. Step 2: Convert to fraction form
    203,308.38/280,575.09 = 126,872.73/x
  3. Step 3: Cross multiply
    203,308.38x = 280,575.09 × 126,872.73
  4. Step 4: Simplify right side
    203,308.38x = 35,597,327,638.30
  5. Step 5: Solve for x
    x = 35,597,327,638.30/203,308.38
  6. Step 6: Final answer
    x = 175,090.31

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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.