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Finding the Fourth Proportional to 106,735.72, 147,300.99 and 61,420.60

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Solution

The fourth proportional to 106,735.72, 147,300.99 and 61,420.60 is: 84,763.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,735.72 : 147,300.99 = 61,420.60 : x
  2. Step 2: Convert to fraction form
    106,735.72/147,300.99 = 61,420.60/x
  3. Step 3: Cross multiply
    106,735.72x = 147,300.99 × 61,420.60
  4. Step 4: Simplify right side
    106,735.72x = 9,047,315,186.39
  5. Step 5: Solve for x
    x = 9,047,315,186.39/106,735.72
  6. Step 6: Final answer
    x = 84,763.71

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