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Finding the Fourth Proportional to 106,945.20, 160,417.80 and 65,473.20

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Solution

The fourth proportional to 106,945.20, 160,417.80 and 65,473.20 is: 98,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,945.20 : 160,417.80 = 65,473.20 : x
  2. Step 2: Convert to fraction form
    106,945.20/160,417.80 = 65,473.20/x
  3. Step 3: Cross multiply
    106,945.20x = 160,417.80 × 65,473.20
  4. Step 4: Simplify right side
    106,945.20x = 10,503,066,702.96
  5. Step 5: Solve for x
    x = 10,503,066,702.96/106,945.20
  6. Step 6: Final answer
    x = 98,209.80

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