Home / 126,976.67-190,297.90-70,843.21

Finding the Fourth Proportional to 126,976.67, 190,297.90 and 70,843.21

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Solution

The fourth proportional to 126,976.67, 190,297.90 and 70,843.21 is: 106,171.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,976.67 : 190,297.90 = 70,843.21 : x
  2. Step 2: Convert to fraction form
    126,976.67/190,297.90 = 70,843.21/x
  3. Step 3: Cross multiply
    126,976.67x = 190,297.90 × 70,843.21
  4. Step 4: Simplify right side
    126,976.67x = 13,481,314,418.69
  5. Step 5: Solve for x
    x = 13,481,314,418.69/126,976.67
  6. Step 6: Final answer
    x = 106,171.58

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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.