Home / 199,921.88-299,734.66-121,017.44

Finding the Fourth Proportional to 199,921.88, 299,734.66 and 121,017.44

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Solution

The fourth proportional to 199,921.88, 299,734.66 and 121,017.44 is: 181,436.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,921.88 : 299,734.66 = 121,017.44 : x
  2. Step 2: Convert to fraction form
    199,921.88/299,734.66 = 121,017.44/x
  3. Step 3: Cross multiply
    199,921.88x = 299,734.66 × 121,017.44
  4. Step 4: Simplify right side
    199,921.88x = 36,273,121,232.47
  5. Step 5: Solve for x
    x = 36,273,121,232.47/199,921.88
  6. Step 6: Final answer
    x = 181,436.48

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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.