Home / 131,940.20-197,910.30-127,274.60

Finding the Fourth Proportional to 131,940.20, 197,910.30 and 127,274.60

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Solution

The fourth proportional to 131,940.20, 197,910.30 and 127,274.60 is: 190,911.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,940.20 : 197,910.30 = 127,274.60 : x
  2. Step 2: Convert to fraction form
    131,940.20/197,910.30 = 127,274.60/x
  3. Step 3: Cross multiply
    131,940.20x = 197,910.30 × 127,274.60
  4. Step 4: Simplify right side
    131,940.20x = 25,188,954,268.38
  5. Step 5: Solve for x
    x = 25,188,954,268.38/131,940.20
  6. Step 6: Final answer
    x = 190,911.90

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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.