Home / 198,760.20-298,142.08-56,605.36

Finding the Fourth Proportional to 198,760.20, 298,142.08 and 56,605.36

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Solution

The fourth proportional to 198,760.20, 298,142.08 and 56,605.36 is: 84,908.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,760.20 : 298,142.08 = 56,605.36 : x
  2. Step 2: Convert to fraction form
    198,760.20/298,142.08 = 56,605.36/x
  3. Step 3: Cross multiply
    198,760.20x = 298,142.08 × 56,605.36
  4. Step 4: Simplify right side
    198,760.20x = 16,876,439,769.55
  5. Step 5: Solve for x
    x = 16,876,439,769.55/198,760.20
  6. Step 6: Final answer
    x = 84,908.55

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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.