Home / 200,331.10-276,448.37-109,685.42

Finding the Fourth Proportional to 200,331.10, 276,448.37 and 109,685.42

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Solution

The fourth proportional to 200,331.10, 276,448.37 and 109,685.42 is: 151,361.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,331.10 : 276,448.37 = 109,685.42 : x
  2. Step 2: Convert to fraction form
    200,331.10/276,448.37 = 109,685.42/x
  3. Step 3: Cross multiply
    200,331.10x = 276,448.37 × 109,685.42
  4. Step 4: Simplify right side
    200,331.10x = 30,322,355,571.77
  5. Step 5: Solve for x
    x = 30,322,355,571.77/200,331.10
  6. Step 6: Final answer
    x = 151,361.20

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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.