Home / 198,401.62-273,872.75-138,007.31

Finding the Fourth Proportional to 198,401.62, 273,872.75 and 138,007.31

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Solution

The fourth proportional to 198,401.62, 273,872.75 and 138,007.31 is: 190,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,401.62 : 273,872.75 = 138,007.31 : x
  2. Step 2: Convert to fraction form
    198,401.62/273,872.75 = 138,007.31/x
  3. Step 3: Cross multiply
    198,401.62x = 273,872.75 × 138,007.31
  4. Step 4: Simplify right side
    198,401.62x = 37,796,441,509.80
  5. Step 5: Solve for x
    x = 37,796,441,509.80/198,401.62
  6. Step 6: Final answer
    x = 190,504.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.