Home / 200,636.91-276,877.17-109,991.23

Finding the Fourth Proportional to 200,636.91, 276,877.17 and 109,991.23

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Solution

The fourth proportional to 200,636.91, 276,877.17 and 109,991.23 is: 151,786.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,636.91 : 276,877.17 = 109,991.23 : x
  2. Step 2: Convert to fraction form
    200,636.91/276,877.17 = 109,991.23/x
  3. Step 3: Cross multiply
    200,636.91x = 276,877.17 × 109,991.23
  4. Step 4: Simplify right side
    200,636.91x = 30,454,059,795.03
  5. Step 5: Solve for x
    x = 30,454,059,795.03/200,636.91
  6. Step 6: Final answer
    x = 151,786.93

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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.