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Finding the Fourth Proportional to 150,799.54, 208,107.04 and 81,891.95

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Solution

The fourth proportional to 150,799.54, 208,107.04 and 81,891.95 is: 113,012.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,799.54 : 208,107.04 = 81,891.95 : x
  2. Step 2: Convert to fraction form
    150,799.54/208,107.04 = 81,891.95/x
  3. Step 3: Cross multiply
    150,799.54x = 208,107.04 × 81,891.95
  4. Step 4: Simplify right side
    150,799.54x = 17,042,291,314.33
  5. Step 5: Solve for x
    x = 17,042,291,314.33/150,799.54
  6. Step 6: Final answer
    x = 113,012.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.