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Finding the Fourth Proportional to 166,667.52, 230,007.04 and 91,216

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Solution

The fourth proportional to 166,667.52, 230,007.04 and 91,216 is: 125,881.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,667.52 : 230,007.04 = 91,216 : x
  2. Step 2: Convert to fraction form
    166,667.52/230,007.04 = 91,216/x
  3. Step 3: Cross multiply
    166,667.52x = 230,007.04 × 91,216
  4. Step 4: Simplify right side
    166,667.52x = 20,980,322,160.64
  5. Step 5: Solve for x
    x = 20,980,322,160.64/166,667.52
  6. Step 6: Final answer
    x = 125,881.29

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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.