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Finding the Fourth Proportional to 159,802.88, 220,540.42 and 91,843.56

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Solution

The fourth proportional to 159,802.88, 220,540.42 and 91,843.56 is: 126,751.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,802.88 : 220,540.42 = 91,843.56 : x
  2. Step 2: Convert to fraction form
    159,802.88/220,540.42 = 91,843.56/x
  3. Step 3: Cross multiply
    159,802.88x = 220,540.42 × 91,843.56
  4. Step 4: Simplify right side
    159,802.88x = 20,255,217,296.70
  5. Step 5: Solve for x
    x = 20,255,217,296.70/159,802.88
  6. Step 6: Final answer
    x = 126,751.27

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1.5x scale

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.