Home / 126,723.40-190,085.10-80,182.60

Finding the Fourth Proportional to 126,723.40, 190,085.10 and 80,182.60

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Solution

The fourth proportional to 126,723.40, 190,085.10 and 80,182.60 is: 120,273.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,723.40 : 190,085.10 = 80,182.60 : x
  2. Step 2: Convert to fraction form
    126,723.40/190,085.10 = 80,182.60/x
  3. Step 3: Cross multiply
    126,723.40x = 190,085.10 × 80,182.60
  4. Step 4: Simplify right side
    126,723.40x = 15,241,517,539.26
  5. Step 5: Solve for x
    x = 15,241,517,539.26/126,723.40
  6. Step 6: Final answer
    x = 120,273.90

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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.