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Finding the Fourth Proportional to 207,890.80, 286,889.28 and 112,397.44

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Solution

The fourth proportional to 207,890.80, 286,889.28 and 112,397.44 is: 155,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,890.80 : 286,889.28 = 112,397.44 : x
  2. Step 2: Convert to fraction form
    207,890.80/286,889.28 = 112,397.44/x
  3. Step 3: Cross multiply
    207,890.80x = 286,889.28 × 112,397.44
  4. Step 4: Simplify right side
    207,890.80x = 32,245,620,635.44
  5. Step 5: Solve for x
    x = 32,245,620,635.44/207,890.80
  6. Step 6: Final answer
    x = 155,108.45

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