Home / 200,155.04-276,204-109,512.80

Finding the Fourth Proportional to 200,155.04, 276,204 and 109,512.80

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Solution

The fourth proportional to 200,155.04, 276,204 and 109,512.80 is: 151,122.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,155.04 : 276,204 = 109,512.80 : x
  2. Step 2: Convert to fraction form
    200,155.04/276,204 = 109,512.80/x
  3. Step 3: Cross multiply
    200,155.04x = 276,204 × 109,512.80
  4. Step 4: Simplify right side
    200,155.04x = 30,247,873,411.20
  5. Step 5: Solve for x
    x = 30,247,873,411.20/200,155.04
  6. Step 6: Final answer
    x = 151,122.22

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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.