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Finding the Fourth Proportional to 117,875.75, 162,682.38 and 66,201.33

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Solution

The fourth proportional to 117,875.75, 162,682.38 and 66,201.33 is: 91,365.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,875.75 : 162,682.38 = 66,201.33 : x
  2. Step 2: Convert to fraction form
    117,875.75/162,682.38 = 66,201.33/x
  3. Step 3: Cross multiply
    117,875.75x = 162,682.38 × 66,201.33
  4. Step 4: Simplify right side
    117,875.75x = 10,769,789,923.57
  5. Step 5: Solve for x
    x = 10,769,789,923.57/117,875.75
  6. Step 6: Final answer
    x = 91,365.61

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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.