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Finding the Fourth Proportional to 91,365.56, 125,987.50 and 71,186.68

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Solution

The fourth proportional to 91,365.56, 125,987.50 and 71,186.68 is: 98,162.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,365.56 : 125,987.50 = 71,186.68 : x
  2. Step 2: Convert to fraction form
    91,365.56/125,987.50 = 71,186.68/x
  3. Step 3: Cross multiply
    91,365.56x = 125,987.50 × 71,186.68
  4. Step 4: Simplify right side
    91,365.56x = 8,968,631,846.50
  5. Step 5: Solve for x
    x = 8,968,631,846.50/91,365.56
  6. Step 6: Final answer
    x = 98,162.06

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