Home / 159,869.36-220,618.50-88,249.43

Finding the Fourth Proportional to 159,869.36, 220,618.50 and 88,249.43

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Solution

The fourth proportional to 159,869.36, 220,618.50 and 88,249.43 is: 121,783.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,869.36 : 220,618.50 = 88,249.43 : x
  2. Step 2: Convert to fraction form
    159,869.36/220,618.50 = 88,249.43/x
  3. Step 3: Cross multiply
    159,869.36x = 220,618.50 × 88,249.43
  4. Step 4: Simplify right side
    159,869.36x = 19,469,456,872.46
  5. Step 5: Solve for x
    x = 19,469,456,872.46/159,869.36
  6. Step 6: Final answer
    x = 121,783.54

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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.