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Finding the Fourth Proportional to 91,713.13, 137,468.71 and 69,151.49

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Solution

The fourth proportional to 91,713.13, 137,468.71 and 69,151.49 is: 103,651.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,713.13 : 137,468.71 = 69,151.49 : x
  2. Step 2: Convert to fraction form
    91,713.13/137,468.71 = 69,151.49/x
  3. Step 3: Cross multiply
    91,713.13x = 137,468.71 × 69,151.49
  4. Step 4: Simplify right side
    91,713.13x = 9,506,166,039.48
  5. Step 5: Solve for x
    x = 9,506,166,039.48/91,713.13
  6. Step 6: Final answer
    x = 103,651.09

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