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Finding the Fourth Proportional to 181,951.88, 251,098.45 and 101,382.80

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Solution

The fourth proportional to 181,951.88, 251,098.45 and 101,382.80 is: 139,910.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,951.88 : 251,098.45 = 101,382.80 : x
  2. Step 2: Convert to fraction form
    181,951.88/251,098.45 = 101,382.80/x
  3. Step 3: Cross multiply
    181,951.88x = 251,098.45 × 101,382.80
  4. Step 4: Simplify right side
    181,951.88x = 25,457,062,427.71
  5. Step 5: Solve for x
    x = 25,457,062,427.71/181,951.88
  6. Step 6: Final answer
    x = 139,910.97

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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.