Home / 198,622.50-297,839.96-72,173.52

Finding the Fourth Proportional to 198,622.50, 297,839.96 and 72,173.52

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Solution

The fourth proportional to 198,622.50, 297,839.96 and 72,173.52 is: 108,226.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,622.50 : 297,839.96 = 72,173.52 : x
  2. Step 2: Convert to fraction form
    198,622.50/297,839.96 = 72,173.52/x
  3. Step 3: Cross multiply
    198,622.50x = 297,839.96 × 72,173.52
  4. Step 4: Simplify right side
    198,622.50x = 21,496,158,309.86
  5. Step 5: Solve for x
    x = 21,496,158,309.86/198,622.50
  6. Step 6: Final answer
    x = 108,226.20

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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.