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Finding the Fourth Proportional to 133,332.31, 199,998.65 and 54,446.54

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Solution

The fourth proportional to 133,332.31, 199,998.65 and 54,446.54 is: 81,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,332.31 : 199,998.65 = 54,446.54 : x
  2. Step 2: Convert to fraction form
    133,332.31/199,998.65 = 54,446.54/x
  3. Step 3: Cross multiply
    133,332.31x = 199,998.65 × 54,446.54
  4. Step 4: Simplify right side
    133,332.31x = 10,889,233,633.29
  5. Step 5: Solve for x
    x = 10,889,233,633.29/133,332.31
  6. Step 6: Final answer
    x = 81,669.88

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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.