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Finding the Fourth Proportional to 208,697.81, 287,683.40 and 127,975.64

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Solution

The fourth proportional to 208,697.81, 287,683.40 and 127,975.64 is: 176,410.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,697.81 : 287,683.40 = 127,975.64 : x
  2. Step 2: Convert to fraction form
    208,697.81/287,683.40 = 127,975.64/x
  3. Step 3: Cross multiply
    208,697.81x = 287,683.40 × 127,975.64
  4. Step 4: Simplify right side
    208,697.81x = 36,816,465,154.08
  5. Step 5: Solve for x
    x = 36,816,465,154.08/208,697.81
  6. Step 6: Final answer
    x = 176,410.41

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