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Finding the Fourth Proportional to 124,559.40, 186,838.46 and 74,654.40

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Solution

The fourth proportional to 124,559.40, 186,838.46 and 74,654.40 is: 111,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,559.40 : 186,838.46 = 74,654.40 : x
  2. Step 2: Convert to fraction form
    124,559.40/186,838.46 = 74,654.40/x
  3. Step 3: Cross multiply
    124,559.40x = 186,838.46 × 74,654.40
  4. Step 4: Simplify right side
    124,559.40x = 13,948,313,128.22
  5. Step 5: Solve for x
    x = 13,948,313,128.22/124,559.40
  6. Step 6: Final answer
    x = 111,981.22

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