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Finding the Fourth Proportional to 159,695.64, 220,392.90 and 88,081.92

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Solution

The fourth proportional to 159,695.64, 220,392.90 and 88,081.92 is: 121,560.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,695.64 : 220,392.90 = 88,081.92 : x
  2. Step 2: Convert to fraction form
    159,695.64/220,392.90 = 88,081.92/x
  3. Step 3: Cross multiply
    159,695.64x = 220,392.90 × 88,081.92
  4. Step 4: Simplify right side
    159,695.64x = 19,412,629,786.37
  5. Step 5: Solve for x
    x = 19,412,629,786.37/159,695.64
  6. Step 6: Final answer
    x = 121,560.17

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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.