Home / 126,839.12-190,121.12-63,506.52

Finding the Fourth Proportional to 126,839.12, 190,121.12 and 63,506.52

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Solution

The fourth proportional to 126,839.12, 190,121.12 and 63,506.52 is: 95,190.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,839.12 : 190,121.12 = 63,506.52 : x
  2. Step 2: Convert to fraction form
    126,839.12/190,121.12 = 63,506.52/x
  3. Step 3: Cross multiply
    126,839.12x = 190,121.12 × 63,506.52
  4. Step 4: Simplify right side
    126,839.12x = 12,073,930,392.17
  5. Step 5: Solve for x
    x = 12,073,930,392.17/126,839.12
  6. Step 6: Final answer
    x = 95,190.91

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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.