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Finding the Fourth Proportional to 144,967.36, 217,513.58 and 78,454.40

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Solution

The fourth proportional to 144,967.36, 217,513.58 and 78,454.40 is: 117,715.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,967.36 : 217,513.58 = 78,454.40 : x
  2. Step 2: Convert to fraction form
    144,967.36/217,513.58 = 78,454.40/x
  3. Step 3: Cross multiply
    144,967.36x = 217,513.58 × 78,454.40
  4. Step 4: Simplify right side
    144,967.36x = 17,064,897,410.75
  5. Step 5: Solve for x
    x = 17,064,897,410.75/144,967.36
  6. Step 6: Final answer
    x = 117,715.45

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