Home / 202,454.94-279,375.57-121,908.54

Finding the Fourth Proportional to 202,454.94, 279,375.57 and 121,908.54

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Solution

The fourth proportional to 202,454.94, 279,375.57 and 121,908.54 is: 168,226.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,454.94 : 279,375.57 = 121,908.54 : x
  2. Step 2: Convert to fraction form
    202,454.94/279,375.57 = 121,908.54/x
  3. Step 3: Cross multiply
    202,454.94x = 279,375.57 × 121,908.54
  4. Step 4: Simplify right side
    202,454.94x = 34,058,267,850.37
  5. Step 5: Solve for x
    x = 34,058,267,850.37/202,454.94
  6. Step 6: Final answer
    x = 168,226.41

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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.