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Finding the Fourth Proportional to 171,871.08, 237,128.94 and 100,200.39

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Solution

The fourth proportional to 171,871.08, 237,128.94 and 100,200.39 is: 138,245.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,871.08 : 237,128.94 = 100,200.39 : x
  2. Step 2: Convert to fraction form
    171,871.08/237,128.94 = 100,200.39/x
  3. Step 3: Cross multiply
    171,871.08x = 237,128.94 × 100,200.39
  4. Step 4: Simplify right side
    171,871.08x = 23,760,412,268.29
  5. Step 5: Solve for x
    x = 23,760,412,268.29/171,871.08
  6. Step 6: Final answer
    x = 138,245.55

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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.