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Finding the Fourth Proportional to 107,815.90, 161,723.85 and 48,679.90

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Solution

The fourth proportional to 107,815.90, 161,723.85 and 48,679.90 is: 73,019.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,815.90 : 161,723.85 = 48,679.90 : x
  2. Step 2: Convert to fraction form
    107,815.90/161,723.85 = 48,679.90/x
  3. Step 3: Cross multiply
    107,815.90x = 161,723.85 × 48,679.90
  4. Step 4: Simplify right side
    107,815.90x = 7,872,700,845.62
  5. Step 5: Solve for x
    x = 7,872,700,845.62/107,815.90
  6. Step 6: Final answer
    x = 73,019.85

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