Home / 199,991.28-299,986.94-138,055.44

Finding the Fourth Proportional to 199,991.28, 299,986.94 and 138,055.44

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Solution

The fourth proportional to 199,991.28, 299,986.94 and 138,055.44 is: 207,083.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,991.28 : 299,986.94 = 138,055.44 : x
  2. Step 2: Convert to fraction form
    199,991.28/299,986.94 = 138,055.44/x
  3. Step 3: Cross multiply
    199,991.28x = 299,986.94 × 138,055.44
  4. Step 4: Simplify right side
    199,991.28x = 41,414,828,995.95
  5. Step 5: Solve for x
    x = 41,414,828,995.95/199,991.28
  6. Step 6: Final answer
    x = 207,083.17

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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.