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Finding the Fourth Proportional to 159,766, 220,407.94 and 91,767.38

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Solution

The fourth proportional to 159,766, 220,407.94 and 91,767.38 is: 126,599.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,766 : 220,407.94 = 91,767.38 : x
  2. Step 2: Convert to fraction form
    159,766/220,407.94 = 91,767.38/x
  3. Step 3: Cross multiply
    159,766x = 220,407.94 × 91,767.38
  4. Step 4: Simplify right side
    159,766x = 20,226,259,185.00
  5. Step 5: Solve for x
    x = 20,226,259,185.00/159,766
  6. Step 6: Final answer
    x = 126,599.27

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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.