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Finding the Fourth Proportional to 159,660.26, 220,323.05 and 90,747.91

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Solution

The fourth proportional to 159,660.26, 220,323.05 and 90,747.91 is: 125,227.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,660.26 : 220,323.05 = 90,747.91 : x
  2. Step 2: Convert to fraction form
    159,660.26/220,323.05 = 90,747.91/x
  3. Step 3: Cross multiply
    159,660.26x = 220,323.05 × 90,747.91
  4. Step 4: Simplify right side
    159,660.26x = 19,993,856,474.29
  5. Step 5: Solve for x
    x = 19,993,856,474.29/159,660.26
  6. Step 6: Final answer
    x = 125,227.51

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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.