Home / 166,039.12-229,132.20-90,586

Finding the Fourth Proportional to 166,039.12, 229,132.20 and 90,586

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Solution

The fourth proportional to 166,039.12, 229,132.20 and 90,586 is: 125,007.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,039.12 : 229,132.20 = 90,586 : x
  2. Step 2: Convert to fraction form
    166,039.12/229,132.20 = 90,586/x
  3. Step 3: Cross multiply
    166,039.12x = 229,132.20 × 90,586
  4. Step 4: Simplify right side
    166,039.12x = 20,756,169,469.20
  5. Step 5: Solve for x
    x = 20,756,169,469.20/166,039.12
  6. Step 6: Final answer
    x = 125,007.71

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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.