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Finding the Fourth Proportional to 159,963.37, 240,092.66 and 81,132.96

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Solution

The fourth proportional to 159,963.37, 240,092.66 and 81,132.96 is: 121,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,963.37 : 240,092.66 = 81,132.96 : x
  2. Step 2: Convert to fraction form
    159,963.37/240,092.66 = 81,132.96/x
  3. Step 3: Cross multiply
    159,963.37x = 240,092.66 × 81,132.96
  4. Step 4: Simplify right side
    159,963.37x = 19,479,428,180.07
  5. Step 5: Solve for x
    x = 19,479,428,180.07/159,963.37
  6. Step 6: Final answer
    x = 121,774.30

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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.