Home / 126,635.22-189,962.82-42,395.88

Finding the Fourth Proportional to 126,635.22, 189,962.82 and 42,395.88

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Solution

The fourth proportional to 126,635.22, 189,962.82 and 42,395.88 is: 63,597.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,635.22 : 189,962.82 = 42,395.88 : x
  2. Step 2: Convert to fraction form
    126,635.22/189,962.82 = 42,395.88/x
  3. Step 3: Cross multiply
    126,635.22x = 189,962.82 × 42,395.88
  4. Step 4: Simplify right side
    126,635.22x = 8,053,640,921.18
  5. Step 5: Solve for x
    x = 8,053,640,921.18/126,635.22
  6. Step 6: Final answer
    x = 63,597.16

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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.