Home / 131,086.20-196,629.30-120,948.60

Finding the Fourth Proportional to 131,086.20, 196,629.30 and 120,948.60

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Solution

The fourth proportional to 131,086.20, 196,629.30 and 120,948.60 is: 181,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,086.20 : 196,629.30 = 120,948.60 : x
  2. Step 2: Convert to fraction form
    131,086.20/196,629.30 = 120,948.60/x
  3. Step 3: Cross multiply
    131,086.20x = 196,629.30 × 120,948.60
  4. Step 4: Simplify right side
    131,086.20x = 23,782,038,553.98
  5. Step 5: Solve for x
    x = 23,782,038,553.98/131,086.20
  6. Step 6: Final answer
    x = 181,422.90

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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.