Home / 199,553.40-299,329.74-81,198.36

Finding the Fourth Proportional to 199,553.40, 299,329.74 and 81,198.36

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Solution

The fourth proportional to 199,553.40, 299,329.74 and 81,198.36 is: 121,797.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,553.40 : 299,329.74 = 81,198.36 : x
  2. Step 2: Convert to fraction form
    199,553.40/299,329.74 = 81,198.36/x
  3. Step 3: Cross multiply
    199,553.40x = 299,329.74 × 81,198.36
  4. Step 4: Simplify right side
    199,553.40x = 24,305,083,987.23
  5. Step 5: Solve for x
    x = 24,305,083,987.23/199,553.40
  6. Step 6: Final answer
    x = 121,797.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.