Home / 166,321.20-229,518.36-90,869.70

Finding the Fourth Proportional to 166,321.20, 229,518.36 and 90,869.70

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Solution

The fourth proportional to 166,321.20, 229,518.36 and 90,869.70 is: 125,397.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,321.20 : 229,518.36 = 90,869.70 : x
  2. Step 2: Convert to fraction form
    166,321.20/229,518.36 = 90,869.70/x
  3. Step 3: Cross multiply
    166,321.20x = 229,518.36 × 90,869.70
  4. Step 4: Simplify right side
    166,321.20x = 20,856,264,517.69
  5. Step 5: Solve for x
    x = 20,856,264,517.69/166,321.20
  6. Step 6: Final answer
    x = 125,397.51

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1.5x scale

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.