Home / 198,918.24-274,530.51-111,717.64

Finding the Fourth Proportional to 198,918.24, 274,530.51 and 111,717.64

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Solution

The fourth proportional to 198,918.24, 274,530.51 and 111,717.64 is: 154,183.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,918.24 : 274,530.51 = 111,717.64 : x
  2. Step 2: Convert to fraction form
    198,918.24/274,530.51 = 111,717.64/x
  3. Step 3: Cross multiply
    198,918.24x = 274,530.51 × 111,717.64
  4. Step 4: Simplify right side
    198,918.24x = 30,669,899,998.87
  5. Step 5: Solve for x
    x = 30,669,899,998.87/198,918.24
  6. Step 6: Final answer
    x = 154,183.45

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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.