Home / 111,010.20-166,515.30-98,179.80

Finding the Fourth Proportional to 111,010.20, 166,515.30 and 98,179.80

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Solution

The fourth proportional to 111,010.20, 166,515.30 and 98,179.80 is: 147,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,010.20 : 166,515.30 = 98,179.80 : x
  2. Step 2: Convert to fraction form
    111,010.20/166,515.30 = 98,179.80/x
  3. Step 3: Cross multiply
    111,010.20x = 166,515.30 × 98,179.80
  4. Step 4: Simplify right side
    111,010.20x = 16,348,438,850.94
  5. Step 5: Solve for x
    x = 16,348,438,850.94/111,010.20
  6. Step 6: Final answer
    x = 147,269.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.