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Finding the Fourth Proportional to 146,608.93, 219,979.01 and 84,279.43

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Solution

The fourth proportional to 146,608.93, 219,979.01 and 84,279.43 is: 126,456.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,608.93 : 219,979.01 = 84,279.43 : x
  2. Step 2: Convert to fraction form
    146,608.93/219,979.01 = 84,279.43/x
  3. Step 3: Cross multiply
    146,608.93x = 219,979.01 × 84,279.43
  4. Step 4: Simplify right side
    146,608.93x = 18,539,705,574.76
  5. Step 5: Solve for x
    x = 18,539,705,574.76/146,608.93
  6. Step 6: Final answer
    x = 126,456.86

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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.