Home / 166,269.35-229,452-90,817.85

Finding the Fourth Proportional to 166,269.35, 229,452 and 90,817.85

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Solution

The fourth proportional to 166,269.35, 229,452 and 90,817.85 is: 125,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,269.35 : 229,452 = 90,817.85 : x
  2. Step 2: Convert to fraction form
    166,269.35/229,452 = 90,817.85/x
  3. Step 3: Cross multiply
    166,269.35x = 229,452 × 90,817.85
  4. Step 4: Simplify right side
    166,269.35x = 20,838,337,318.20
  5. Step 5: Solve for x
    x = 20,838,337,318.20/166,269.35
  6. Step 6: Final answer
    x = 125,328.80

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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.