Home / 126,995.52-190,234.88-82,487.36

Finding the Fourth Proportional to 126,995.52, 190,234.88 and 82,487.36

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Solution

The fourth proportional to 126,995.52, 190,234.88 and 82,487.36 is: 123,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,995.52 : 190,234.88 = 82,487.36 : x
  2. Step 2: Convert to fraction form
    126,995.52/190,234.88 = 82,487.36/x
  3. Step 3: Cross multiply
    126,995.52x = 190,234.88 × 82,487.36
  4. Step 4: Simplify right side
    126,995.52x = 15,691,973,031.12
  5. Step 5: Solve for x
    x = 15,691,973,031.12/126,995.52
  6. Step 6: Final answer
    x = 123,563.20

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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.