Home / 131,942.20-197,913.30-127,276.60

Finding the Fourth Proportional to 131,942.20, 197,913.30 and 127,276.60

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Solution

The fourth proportional to 131,942.20, 197,913.30 and 127,276.60 is: 190,914.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,942.20 : 197,913.30 = 127,276.60 : x
  2. Step 2: Convert to fraction form
    131,942.20/197,913.30 = 127,276.60/x
  3. Step 3: Cross multiply
    131,942.20x = 197,913.30 × 127,276.60
  4. Step 4: Simplify right side
    131,942.20x = 25,189,731,918.78
  5. Step 5: Solve for x
    x = 25,189,731,918.78/131,942.20
  6. Step 6: Final answer
    x = 190,914.90

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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.