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Finding the Fourth Proportional to 144,035.60, 216,053.40 and 99,712.40

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Solution

The fourth proportional to 144,035.60, 216,053.40 and 99,712.40 is: 149,568.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,035.60 : 216,053.40 = 99,712.40 : x
  2. Step 2: Convert to fraction form
    144,035.60/216,053.40 = 99,712.40/x
  3. Step 3: Cross multiply
    144,035.60x = 216,053.40 × 99,712.40
  4. Step 4: Simplify right side
    144,035.60x = 21,543,203,042.16
  5. Step 5: Solve for x
    x = 21,543,203,042.16/144,035.60
  6. Step 6: Final answer
    x = 149,568.60

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