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Finding the Fourth Proportional to 135,920.75, 187,570.64 and 76,304.75

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Solution

The fourth proportional to 135,920.75, 187,570.64 and 76,304.75 is: 105,300.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,920.75 : 187,570.64 = 76,304.75 : x
  2. Step 2: Convert to fraction form
    135,920.75/187,570.64 = 76,304.75/x
  3. Step 3: Cross multiply
    135,920.75x = 187,570.64 × 76,304.75
  4. Step 4: Simplify right side
    135,920.75x = 14,312,530,411.02
  5. Step 5: Solve for x
    x = 14,312,530,411.02/135,920.75
  6. Step 6: Final answer
    x = 105,300.56

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