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Finding the Fourth Proportional to 107,790.80, 161,686.20 and 101,667.20

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Solution

The fourth proportional to 107,790.80, 161,686.20 and 101,667.20 is: 152,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,790.80 : 161,686.20 = 101,667.20 : x
  2. Step 2: Convert to fraction form
    107,790.80/161,686.20 = 101,667.20/x
  3. Step 3: Cross multiply
    107,790.80x = 161,686.20 × 101,667.20
  4. Step 4: Simplify right side
    107,790.80x = 16,438,183,232.64
  5. Step 5: Solve for x
    x = 16,438,183,232.64/107,790.80
  6. Step 6: Final answer
    x = 152,500.80

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