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Finding the Fourth Proportional to 171,009.48, 256,566.06 and 121,185.96

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Solution

The fourth proportional to 171,009.48, 256,566.06 and 121,185.96 is: 181,815.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,009.48 : 256,566.06 = 121,185.96 : x
  2. Step 2: Convert to fraction form
    171,009.48/256,566.06 = 121,185.96/x
  3. Step 3: Cross multiply
    171,009.48x = 256,566.06 × 121,185.96
  4. Step 4: Simplify right side
    171,009.48x = 31,092,204,284.52
  5. Step 5: Solve for x
    x = 31,092,204,284.52/171,009.48
  6. Step 6: Final answer
    x = 181,815.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.