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Finding the Fourth Proportional to 133,219.77, 199,843.10 and 43,258.72

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Solution

The fourth proportional to 133,219.77, 199,843.10 and 43,258.72 is: 64,892.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,219.77 : 199,843.10 = 43,258.72 : x
  2. Step 2: Convert to fraction form
    133,219.77/199,843.10 = 43,258.72/x
  3. Step 3: Cross multiply
    133,219.77x = 199,843.10 × 43,258.72
  4. Step 4: Simplify right side
    133,219.77x = 8,644,956,902.56
  5. Step 5: Solve for x
    x = 8,644,956,902.56/133,219.77
  6. Step 6: Final answer
    x = 64,892.45

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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.