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Finding the Fourth Proportional to 125,371.20, 172,977.76 and 80,685.12

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Solution

The fourth proportional to 125,371.20, 172,977.76 and 80,685.12 is: 111,323.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,371.20 : 172,977.76 = 80,685.12 : x
  2. Step 2: Convert to fraction form
    125,371.20/172,977.76 = 80,685.12/x
  3. Step 3: Cross multiply
    125,371.20x = 172,977.76 × 80,685.12
  4. Step 4: Simplify right side
    125,371.20x = 13,956,731,322.93
  5. Step 5: Solve for x
    x = 13,956,731,322.93/125,371.20
  6. Step 6: Final answer
    x = 111,323.27

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