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Finding the Fourth Proportional to 203,600.80, 280,970.80 and 112,962.72

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Solution

The fourth proportional to 203,600.80, 280,970.80 and 112,962.72 is: 155,889.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,600.80 : 280,970.80 = 112,962.72 : x
  2. Step 2: Convert to fraction form
    203,600.80/280,970.80 = 112,962.72/x
  3. Step 3: Cross multiply
    203,600.80x = 280,970.80 × 112,962.72
  4. Step 4: Simplify right side
    203,600.80x = 31,739,225,808.58
  5. Step 5: Solve for x
    x = 31,739,225,808.58/203,600.80
  6. Step 6: Final answer
    x = 155,889.49

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