Home / 140,969.96-194,534.34-80,540.36

Finding the Fourth Proportional to 140,969.96, 194,534.34 and 80,540.36

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Solution

The fourth proportional to 140,969.96, 194,534.34 and 80,540.36 is: 111,143.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,969.96 : 194,534.34 = 80,540.36 : x
  2. Step 2: Convert to fraction form
    140,969.96/194,534.34 = 80,540.36/x
  3. Step 3: Cross multiply
    140,969.96x = 194,534.34 × 80,540.36
  4. Step 4: Simplify right side
    140,969.96x = 15,667,865,775.96
  5. Step 5: Solve for x
    x = 15,667,865,775.96/140,969.96
  6. Step 6: Final answer
    x = 111,143.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.