Home / 198,620.55-297,837.17-72,171.63

Finding the Fourth Proportional to 198,620.55, 297,837.17 and 72,171.63

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Solution

The fourth proportional to 198,620.55, 297,837.17 and 72,171.63 is: 108,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,620.55 : 297,837.17 = 72,171.63 : x
  2. Step 2: Convert to fraction form
    198,620.55/297,837.17 = 72,171.63/x
  3. Step 3: Cross multiply
    198,620.55x = 297,837.17 × 72,171.63
  4. Step 4: Simplify right side
    198,620.55x = 21,495,394,033.49
  5. Step 5: Solve for x
    x = 21,495,394,033.49/198,620.55
  6. Step 6: Final answer
    x = 108,223.41

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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.