Home / 205,986.19-309,146.89-106,174.93

Finding the Fourth Proportional to 205,986.19, 309,146.89 and 106,174.93

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Solution

The fourth proportional to 205,986.19, 309,146.89 and 106,174.93 is: 159,348.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,986.19 : 309,146.89 = 106,174.93 : x
  2. Step 2: Convert to fraction form
    205,986.19/309,146.89 = 106,174.93/x
  3. Step 3: Cross multiply
    205,986.19x = 309,146.89 × 106,174.93
  4. Step 4: Simplify right side
    205,986.19x = 32,823,647,859.73
  5. Step 5: Solve for x
    x = 32,823,647,859.73/205,986.19
  6. Step 6: Final answer
    x = 159,348.78

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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.