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Finding the Fourth Proportional to 166,564.59, 229,859.12 and 91,112.91

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Solution

The fourth proportional to 166,564.59, 229,859.12 and 91,112.91 is: 125,735.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,564.59 : 229,859.12 = 91,112.91 : x
  2. Step 2: Convert to fraction form
    166,564.59/229,859.12 = 91,112.91/x
  3. Step 3: Cross multiply
    166,564.59x = 229,859.12 × 91,112.91
  4. Step 4: Simplify right side
    166,564.59x = 20,943,132,857.67
  5. Step 5: Solve for x
    x = 20,943,132,857.67/166,564.59
  6. Step 6: Final answer
    x = 125,735.81

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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.