Home / 126,369.30-189,609.34-66,383.88

Finding the Fourth Proportional to 126,369.30, 189,609.34 and 66,383.88

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Solution

The fourth proportional to 126,369.30, 189,609.34 and 66,383.88 is: 99,604.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,369.30 : 189,609.34 = 66,383.88 : x
  2. Step 2: Convert to fraction form
    126,369.30/189,609.34 = 66,383.88/x
  3. Step 3: Cross multiply
    126,369.30x = 189,609.34 × 66,383.88
  4. Step 4: Simplify right side
    126,369.30x = 12,587,003,673.44
  5. Step 5: Solve for x
    x = 12,587,003,673.44/126,369.30
  6. Step 6: Final answer
    x = 99,604.92

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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.