Home / 198,654.10-297,887.34-72,205.38

Finding the Fourth Proportional to 198,654.10, 297,887.34 and 72,205.38

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Solution

The fourth proportional to 198,654.10, 297,887.34 and 72,205.38 is: 108,273.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,654.10 : 297,887.34 = 72,205.38 : x
  2. Step 2: Convert to fraction form
    198,654.10/297,887.34 = 72,205.38/x
  3. Step 3: Cross multiply
    198,654.10x = 297,887.34 × 72,205.38
  4. Step 4: Simplify right side
    198,654.10x = 21,509,068,581.89
  5. Step 5: Solve for x
    x = 21,509,068,581.89/198,654.10
  6. Step 6: Final answer
    x = 108,273.97

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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.