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Finding the Fourth Proportional to 171,239.69, 236,405.79 and 103,273.95

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Solution

The fourth proportional to 171,239.69, 236,405.79 and 103,273.95 is: 142,575.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,239.69 : 236,405.79 = 103,273.95 : x
  2. Step 2: Convert to fraction form
    171,239.69/236,405.79 = 103,273.95/x
  3. Step 3: Cross multiply
    171,239.69x = 236,405.79 × 103,273.95
  4. Step 4: Simplify right side
    171,239.69x = 24,414,560,622.69
  5. Step 5: Solve for x
    x = 24,414,560,622.69/171,239.69
  6. Step 6: Final answer
    x = 142,575.36

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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.