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Finding the Fourth Proportional to 166,471.75, 229,731.03 and 91,020.25

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Solution

The fourth proportional to 166,471.75, 229,731.03 and 91,020.25 is: 125,607.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,471.75 : 229,731.03 = 91,020.25 : x
  2. Step 2: Convert to fraction form
    166,471.75/229,731.03 = 91,020.25/x
  3. Step 3: Cross multiply
    166,471.75x = 229,731.03 × 91,020.25
  4. Step 4: Simplify right side
    166,471.75x = 20,910,175,783.36
  5. Step 5: Solve for x
    x = 20,910,175,783.36/166,471.75
  6. Step 6: Final answer
    x = 125,607.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.