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Finding the Fourth Proportional to 121,324.60, 181,943.70 and 54,796.60

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Solution

The fourth proportional to 121,324.60, 181,943.70 and 54,796.60 is: 82,175.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,324.60 : 181,943.70 = 54,796.60 : x
  2. Step 2: Convert to fraction form
    121,324.60/181,943.70 = 54,796.60/x
  3. Step 3: Cross multiply
    121,324.60x = 181,943.70 × 54,796.60
  4. Step 4: Simplify right side
    121,324.60x = 9,969,896,151.42
  5. Step 5: Solve for x
    x = 9,969,896,151.42/121,324.60
  6. Step 6: Final answer
    x = 82,175.39

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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.