Home / 198,938.84-298,418.17-56,805.20

Finding the Fourth Proportional to 198,938.84, 298,418.17 and 56,805.20

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Solution

The fourth proportional to 198,938.84, 298,418.17 and 56,805.20 is: 85,210.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,938.84 : 298,418.17 = 56,805.20 : x
  2. Step 2: Convert to fraction form
    198,938.84/298,418.17 = 56,805.20/x
  3. Step 3: Cross multiply
    198,938.84x = 298,418.17 × 56,805.20
  4. Step 4: Simplify right side
    198,938.84x = 16,951,703,830.48
  5. Step 5: Solve for x
    x = 16,951,703,830.48/198,938.84
  6. Step 6: Final answer
    x = 85,210.63

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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.