Home / 198,021.20-296,726.04-133,727.36

Finding the Fourth Proportional to 198,021.20, 296,726.04 and 133,727.36

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Solution

The fourth proportional to 198,021.20, 296,726.04 and 133,727.36 is: 200,384.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,021.20 : 296,726.04 = 133,727.36 : x
  2. Step 2: Convert to fraction form
    198,021.20/296,726.04 = 133,727.36/x
  3. Step 3: Cross multiply
    198,021.20x = 296,726.04 × 133,727.36
  4. Step 4: Simplify right side
    198,021.20x = 39,680,388,488.82
  5. Step 5: Solve for x
    x = 39,680,388,488.82/198,021.20
  6. Step 6: Final answer
    x = 200,384.55

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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.