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Finding the Fourth Proportional to 159,617.78, 239,279.62 and 54,363.54

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Solution

The fourth proportional to 159,617.78, 239,279.62 and 54,363.54 is: 81,495.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,617.78 : 239,279.62 = 54,363.54 : x
  2. Step 2: Convert to fraction form
    159,617.78/239,279.62 = 54,363.54/x
  3. Step 3: Cross multiply
    159,617.78x = 239,279.62 × 54,363.54
  4. Step 4: Simplify right side
    159,617.78x = 13,008,087,193.05
  5. Step 5: Solve for x
    x = 13,008,087,193.05/159,617.78
  6. Step 6: Final answer
    x = 81,495.23

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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.