Home / 131,188.20-197,219.70-111,942.60

Finding the Fourth Proportional to 131,188.20, 197,219.70 and 111,942.60

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Solution

The fourth proportional to 131,188.20, 197,219.70 and 111,942.60 is: 168,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,188.20 : 197,219.70 = 111,942.60 : x
  2. Step 2: Convert to fraction form
    131,188.20/197,219.70 = 111,942.60/x
  3. Step 3: Cross multiply
    131,188.20x = 197,219.70 × 111,942.60
  4. Step 4: Simplify right side
    131,188.20x = 22,077,285,989.22
  5. Step 5: Solve for x
    x = 22,077,285,989.22/131,188.20
  6. Step 6: Final answer
    x = 168,287.13

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1.5x scale

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.