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Finding the Fourth Proportional to 181,891.67, 250,920.23 and 121,543.25

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Solution

The fourth proportional to 181,891.67, 250,920.23 and 121,543.25 is: 167,669.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,891.67 : 250,920.23 = 121,543.25 : x
  2. Step 2: Convert to fraction form
    181,891.67/250,920.23 = 121,543.25/x
  3. Step 3: Cross multiply
    181,891.67x = 250,920.23 × 121,543.25
  4. Step 4: Simplify right side
    181,891.67x = 30,497,658,382.63
  5. Step 5: Solve for x
    x = 30,497,658,382.63/181,891.67
  6. Step 6: Final answer
    x = 167,669.36

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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.