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Finding the Fourth Proportional to 159,540.58, 220,171.53 and 86,949.52

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Solution

The fourth proportional to 159,540.58, 220,171.53 and 86,949.52 is: 119,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,540.58 : 220,171.53 = 86,949.52 : x
  2. Step 2: Convert to fraction form
    159,540.58/220,171.53 = 86,949.52/x
  3. Step 3: Cross multiply
    159,540.58x = 220,171.53 × 86,949.52
  4. Step 4: Simplify right side
    159,540.58x = 19,143,809,494.24
  5. Step 5: Solve for x
    x = 19,143,809,494.24/159,540.58
  6. Step 6: Final answer
    x = 119,993.35

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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.