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Finding the Fourth Proportional to 660,083.80, 990,125.70 and 161,447.80

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Solution

The fourth proportional to 660,083.80, 990,125.70 and 161,447.80 is: 242,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,083.80 : 990,125.70 = 161,447.80 : x
  2. Step 2: Convert to fraction form
    660,083.80/990,125.70 = 161,447.80/x
  3. Step 3: Cross multiply
    660,083.80x = 990,125.70 × 161,447.80
  4. Step 4: Simplify right side
    660,083.80x = 159,853,615,988.46
  5. Step 5: Solve for x
    x = 159,853,615,988.46/660,083.80
  6. Step 6: Final answer
    x = 242,171.70

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