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Finding the Fourth Proportional to 146,889.20, 220,333.80 and 36,081.20

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Solution

The fourth proportional to 146,889.20, 220,333.80 and 36,081.20 is: 54,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,889.20 : 220,333.80 = 36,081.20 : x
  2. Step 2: Convert to fraction form
    146,889.20/220,333.80 = 36,081.20/x
  3. Step 3: Cross multiply
    146,889.20x = 220,333.80 × 36,081.20
  4. Step 4: Simplify right side
    146,889.20x = 7,949,907,904.56
  5. Step 5: Solve for x
    x = 7,949,907,904.56/146,889.20
  6. Step 6: Final answer
    x = 54,121.80

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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.