Home / 121,784.12-168,069.96-68,071.40

Finding the Fourth Proportional to 121,784.12, 168,069.96 and 68,071.40

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Solution

The fourth proportional to 121,784.12, 168,069.96 and 68,071.40 is: 93,942.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,784.12 : 168,069.96 = 68,071.40 : x
  2. Step 2: Convert to fraction form
    121,784.12/168,069.96 = 68,071.40/x
  3. Step 3: Cross multiply
    121,784.12x = 168,069.96 × 68,071.40
  4. Step 4: Simplify right side
    121,784.12x = 11,440,757,475.14
  5. Step 5: Solve for x
    x = 11,440,757,475.14/121,784.12
  6. Step 6: Final answer
    x = 93,942.93

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