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Finding the Fourth Proportional to 146,999.80, 220,614.90 and 68,123.80

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Solution

The fourth proportional to 146,999.80, 220,614.90 and 68,123.80 is: 102,239.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,999.80 : 220,614.90 = 68,123.80 : x
  2. Step 2: Convert to fraction form
    146,999.80/220,614.90 = 68,123.80/x
  3. Step 3: Cross multiply
    146,999.80x = 220,614.90 × 68,123.80
  4. Step 4: Simplify right side
    146,999.80x = 15,029,125,324.62
  5. Step 5: Solve for x
    x = 15,029,125,324.62/146,999.80
  6. Step 6: Final answer
    x = 102,239.09

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1.5x scale

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.