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Finding the Fourth Proportional to 121,707.82, 167,957.30 and 66,518.25

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Solution

The fourth proportional to 121,707.82, 167,957.30 and 66,518.25 is: 91,795.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,707.82 : 167,957.30 = 66,518.25 : x
  2. Step 2: Convert to fraction form
    121,707.82/167,957.30 = 66,518.25/x
  3. Step 3: Cross multiply
    121,707.82x = 167,957.30 × 66,518.25
  4. Step 4: Simplify right side
    121,707.82x = 11,172,226,624.32
  5. Step 5: Solve for x
    x = 11,172,226,624.32/121,707.82
  6. Step 6: Final answer
    x = 91,795.47

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