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Finding the Fourth Proportional to 109,977.80, 151,772.72 and 64,647.46

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Solution

The fourth proportional to 109,977.80, 151,772.72 and 64,647.46 is: 89,215.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,977.80 : 151,772.72 = 64,647.46 : x
  2. Step 2: Convert to fraction form
    109,977.80/151,772.72 = 64,647.46/x
  3. Step 3: Cross multiply
    109,977.80x = 151,772.72 × 64,647.46
  4. Step 4: Simplify right side
    109,977.80x = 9,811,720,845.29
  5. Step 5: Solve for x
    x = 9,811,720,845.29/109,977.80
  6. Step 6: Final answer
    x = 89,215.47

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