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Finding the Fourth Proportional to 181,601.82, 272,221.97 and 86,721.08

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Solution

The fourth proportional to 181,601.82, 272,221.97 and 86,721.08 is: 129,995.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,601.82 : 272,221.97 = 86,721.08 : x
  2. Step 2: Convert to fraction form
    181,601.82/272,221.97 = 86,721.08/x
  3. Step 3: Cross multiply
    181,601.82x = 272,221.97 × 86,721.08
  4. Step 4: Simplify right side
    181,601.82x = 23,607,381,443.41
  5. Step 5: Solve for x
    x = 23,607,381,443.41/181,601.82
  6. Step 6: Final answer
    x = 129,995.29

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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.