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Finding the Fourth Proportional to 181,310.33, 250,127.75 and 120,822.05

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Solution

The fourth proportional to 181,310.33, 250,127.75 and 120,822.05 is: 166,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,310.33 : 250,127.75 = 120,822.05 : x
  2. Step 2: Convert to fraction form
    181,310.33/250,127.75 = 120,822.05/x
  3. Step 3: Cross multiply
    181,310.33x = 250,127.75 × 120,822.05
  4. Step 4: Simplify right side
    181,310.33x = 30,220,948,444.26
  5. Step 5: Solve for x
    x = 30,220,948,444.26/181,310.33
  6. Step 6: Final answer
    x = 166,680.78

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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.