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Finding the Fourth Proportional to 462,360, 693,540 and 129,936

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Solution

The fourth proportional to 462,360, 693,540 and 129,936 is: 194,904

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,360 : 693,540 = 129,936 : x
  2. Step 2: Convert to fraction form
    462,360/693,540 = 129,936/x
  3. Step 3: Cross multiply
    462,360x = 693,540 × 129,936
  4. Step 4: Simplify right side
    462,360x = 90,115,813,440
  5. Step 5: Solve for x
    x = 90,115,813,440/462,360
  6. Step 6: Final answer
    x = 194,904

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