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Finding the Fourth Proportional to 83,931.60, 117,711.60 and 83,931.60

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Solution

The fourth proportional to 83,931.60, 117,711.60 and 83,931.60 is: 117,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,931.60 : 117,711.60 = 83,931.60 : x
  2. Step 2: Convert to fraction form
    83,931.60/117,711.60 = 83,931.60/x
  3. Step 3: Cross multiply
    83,931.60x = 117,711.60 × 83,931.60
  4. Step 4: Simplify right side
    83,931.60x = 9,879,722,926.56
  5. Step 5: Solve for x
    x = 9,879,722,926.56/83,931.60
  6. Step 6: Final answer
    x = 117,711.60

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