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Finding the Fourth Proportional to 151,517.88, 209,101.15 and 84,449.88

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Solution

The fourth proportional to 151,517.88, 209,101.15 and 84,449.88 is: 116,544.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,517.88 : 209,101.15 = 84,449.88 : x
  2. Step 2: Convert to fraction form
    151,517.88/209,101.15 = 84,449.88/x
  3. Step 3: Cross multiply
    151,517.88x = 209,101.15 × 84,449.88
  4. Step 4: Simplify right side
    151,517.88x = 17,658,567,025.36
  5. Step 5: Solve for x
    x = 17,658,567,025.36/151,517.88
  6. Step 6: Final answer
    x = 116,544.44

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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.