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Finding the Fourth Proportional to 117,859.78, 162,663.64 and 66,182.68

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Solution

The fourth proportional to 117,859.78, 162,663.64 and 66,182.68 is: 91,341.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,859.78 : 162,663.64 = 66,182.68 : x
  2. Step 2: Convert to fraction form
    117,859.78/162,663.64 = 66,182.68/x
  3. Step 3: Cross multiply
    117,859.78x = 162,663.64 × 66,182.68
  4. Step 4: Simplify right side
    117,859.78x = 10,765,515,633.76
  5. Step 5: Solve for x
    x = 10,765,515,633.76/117,859.78
  6. Step 6: Final answer
    x = 91,341.73

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