Home / 198,994.38-298,513.44-99,179.70

Finding the Fourth Proportional to 198,994.38, 298,513.44 and 99,179.70

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Solution

The fourth proportional to 198,994.38, 298,513.44 and 99,179.70 is: 148,780.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,994.38 : 298,513.44 = 99,179.70 : x
  2. Step 2: Convert to fraction form
    198,994.38/298,513.44 = 99,179.70/x
  3. Step 3: Cross multiply
    198,994.38x = 298,513.44 × 99,179.70
  4. Step 4: Simplify right side
    198,994.38x = 29,606,473,425.17
  5. Step 5: Solve for x
    x = 29,606,473,425.17/198,994.38
  6. Step 6: Final answer
    x = 148,780.45

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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.