Home / 126,984.20-190,514.37-38,240.60

Finding the Fourth Proportional to 126,984.20, 190,514.37 and 38,240.60

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Solution

The fourth proportional to 126,984.20, 190,514.37 and 38,240.60 is: 57,372.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,984.20 : 190,514.37 = 38,240.60 : x
  2. Step 2: Convert to fraction form
    126,984.20/190,514.37 = 38,240.60/x
  3. Step 3: Cross multiply
    126,984.20x = 190,514.37 × 38,240.60
  4. Step 4: Simplify right side
    126,984.20x = 7,285,383,817.42
  5. Step 5: Solve for x
    x = 7,285,383,817.42/126,984.20
  6. Step 6: Final answer
    x = 57,372.36

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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.