Home / 217,334.82-299,921.85-121,841.54

Finding the Fourth Proportional to 217,334.82, 299,921.85 and 121,841.54

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Solution

The fourth proportional to 217,334.82, 299,921.85 and 121,841.54 is: 168,141.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,334.82 : 299,921.85 = 121,841.54 : x
  2. Step 2: Convert to fraction form
    217,334.82/299,921.85 = 121,841.54/x
  3. Step 3: Cross multiply
    217,334.82x = 299,921.85 × 121,841.54
  4. Step 4: Simplify right side
    217,334.82x = 36,542,940,083.65
  5. Step 5: Solve for x
    x = 36,542,940,083.65/217,334.82
  6. Step 6: Final answer
    x = 168,141.21

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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.