Home / 197,783.60-296,821.20-131,201.60

Finding the Fourth Proportional to 197,783.60, 296,821.20 and 131,201.60

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Solution

The fourth proportional to 197,783.60, 296,821.20 and 131,201.60 is: 196,899.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,783.60 : 296,821.20 = 131,201.60 : x
  2. Step 2: Convert to fraction form
    197,783.60/296,821.20 = 131,201.60/x
  3. Step 3: Cross multiply
    197,783.60x = 296,821.20 × 131,201.60
  4. Step 4: Simplify right side
    197,783.60x = 38,943,416,353.92
  5. Step 5: Solve for x
    x = 38,943,416,353.92/197,783.60
  6. Step 6: Final answer
    x = 196,899.12

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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.