Home / 200,304.06-276,419.67-109,665.78

Finding the Fourth Proportional to 200,304.06, 276,419.67 and 109,665.78

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Solution

The fourth proportional to 200,304.06, 276,419.67 and 109,665.78 is: 151,338.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,304.06 : 276,419.67 = 109,665.78 : x
  2. Step 2: Convert to fraction form
    200,304.06/276,419.67 = 109,665.78/x
  3. Step 3: Cross multiply
    200,304.06x = 276,419.67 × 109,665.78
  4. Step 4: Simplify right side
    200,304.06x = 30,313,778,824.93
  5. Step 5: Solve for x
    x = 30,313,778,824.93/200,304.06
  6. Step 6: Final answer
    x = 151,338.81

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1.5x scale

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.