Home / 126,735.40-190,103.10-80,194.60

Finding the Fourth Proportional to 126,735.40, 190,103.10 and 80,194.60

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Solution

The fourth proportional to 126,735.40, 190,103.10 and 80,194.60 is: 120,291.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,735.40 : 190,103.10 = 80,194.60 : x
  2. Step 2: Convert to fraction form
    126,735.40/190,103.10 = 80,194.60/x
  3. Step 3: Cross multiply
    126,735.40x = 190,103.10 × 80,194.60
  4. Step 4: Simplify right side
    126,735.40x = 15,245,242,063.26
  5. Step 5: Solve for x
    x = 15,245,242,063.26/126,735.40
  6. Step 6: Final answer
    x = 120,291.90

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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.