Home / 197,998.80-296,998.20-109,206.60

Finding the Fourth Proportional to 197,998.80, 296,998.20 and 109,206.60

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Solution

The fourth proportional to 197,998.80, 296,998.20 and 109,206.60 is: 163,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,998.80 : 296,998.20 = 109,206.60 : x
  2. Step 2: Convert to fraction form
    197,998.80/296,998.20 = 109,206.60/x
  3. Step 3: Cross multiply
    197,998.80x = 296,998.20 × 109,206.60
  4. Step 4: Simplify right side
    197,998.80x = 32,434,163,628.12
  5. Step 5: Solve for x
    x = 32,434,163,628.12/197,998.80
  6. Step 6: Final answer
    x = 163,809.90

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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.