Home / 193,028.28-266,389.92-108,172.68

Finding the Fourth Proportional to 193,028.28, 266,389.92 and 108,172.68

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Solution

The fourth proportional to 193,028.28, 266,389.92 and 108,172.68 is: 149,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,028.28 : 266,389.92 = 108,172.68 : x
  2. Step 2: Convert to fraction form
    193,028.28/266,389.92 = 108,172.68/x
  3. Step 3: Cross multiply
    193,028.28x = 266,389.92 × 108,172.68
  4. Step 4: Simplify right side
    193,028.28x = 28,816,111,571.39
  5. Step 5: Solve for x
    x = 28,816,111,571.39/193,028.28
  6. Step 6: Final answer
    x = 149,284.40

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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.