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Finding the Fourth Proportional to 159,559.46, 220,183.08 and 87,939.26

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Solution

The fourth proportional to 159,559.46, 220,183.08 and 87,939.26 is: 121,351.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,559.46 : 220,183.08 = 87,939.26 : x
  2. Step 2: Convert to fraction form
    159,559.46/220,183.08 = 87,939.26/x
  3. Step 3: Cross multiply
    159,559.46x = 220,183.08 × 87,939.26
  4. Step 4: Simplify right side
    159,559.46x = 19,362,737,119.72
  5. Step 5: Solve for x
    x = 19,362,737,119.72/159,559.46
  6. Step 6: Final answer
    x = 121,351.23

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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.