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Finding the Fourth Proportional to 107,289.43, 148,066.49 and 61,969.33

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Solution

The fourth proportional to 107,289.43, 148,066.49 and 61,969.33 is: 85,521.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,289.43 : 148,066.49 = 61,969.33 : x
  2. Step 2: Convert to fraction form
    107,289.43/148,066.49 = 61,969.33/x
  3. Step 3: Cross multiply
    107,289.43x = 148,066.49 × 61,969.33
  4. Step 4: Simplify right side
    107,289.43x = 9,175,581,180.75
  5. Step 5: Solve for x
    x = 9,175,581,180.75/107,289.43
  6. Step 6: Final answer
    x = 85,521.76

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