Home / 198,562.44-297,970.32-72,190.55

Finding the Fourth Proportional to 198,562.44, 297,970.32 and 72,190.55

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Solution

The fourth proportional to 198,562.44, 297,970.32 and 72,190.55 is: 108,331.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,562.44 : 297,970.32 = 72,190.55 : x
  2. Step 2: Convert to fraction form
    198,562.44/297,970.32 = 72,190.55/x
  3. Step 3: Cross multiply
    198,562.44x = 297,970.32 × 72,190.55
  4. Step 4: Simplify right side
    198,562.44x = 21,510,642,516.10
  5. Step 5: Solve for x
    x = 21,510,642,516.10/198,562.44
  6. Step 6: Final answer
    x = 108,331.88

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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.