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Finding the Fourth Proportional to 317,697.97, 476,639.22 and 128,060.47

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Solution

The fourth proportional to 317,697.97, 476,639.22 and 128,060.47 is: 192,127.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,697.97 : 476,639.22 = 128,060.47 : x
  2. Step 2: Convert to fraction form
    317,697.97/476,639.22 = 128,060.47/x
  3. Step 3: Cross multiply
    317,697.97x = 476,639.22 × 128,060.47
  4. Step 4: Simplify right side
    317,697.97x = 61,038,642,089.03
  5. Step 5: Solve for x
    x = 61,038,642,089.03/317,697.97
  6. Step 6: Final answer
    x = 192,127.89

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