Home / 198,736.40-297,910.20-98,814.80

Finding the Fourth Proportional to 198,736.40, 297,910.20 and 98,814.80

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Solution

The fourth proportional to 198,736.40, 297,910.20 and 98,814.80 is: 148,125.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,736.40 : 297,910.20 = 98,814.80 : x
  2. Step 2: Convert to fraction form
    198,736.40/297,910.20 = 98,814.80/x
  3. Step 3: Cross multiply
    198,736.40x = 297,910.20 × 98,814.80
  4. Step 4: Simplify right side
    198,736.40x = 29,437,936,830.96
  5. Step 5: Solve for x
    x = 29,437,936,830.96/198,736.40
  6. Step 6: Final answer
    x = 148,125.54

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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.