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Finding the Fourth Proportional to 159,870.80, 220,623.25 and 88,249.29

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Solution

The fourth proportional to 159,870.80, 220,623.25 and 88,249.29 is: 121,784.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,870.80 : 220,623.25 = 88,249.29 : x
  2. Step 2: Convert to fraction form
    159,870.80/220,623.25 = 88,249.29/x
  3. Step 3: Cross multiply
    159,870.80x = 220,623.25 × 88,249.29
  4. Step 4: Simplify right side
    159,870.80x = 19,469,844,949.37
  5. Step 5: Solve for x
    x = 19,469,844,949.37/159,870.80
  6. Step 6: Final answer
    x = 121,784.87

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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.