Home / 272,022.70-408,098.85-131,665.90

Finding the Fourth Proportional to 272,022.70, 408,098.85 and 131,665.90

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Solution

The fourth proportional to 272,022.70, 408,098.85 and 131,665.90 is: 197,530.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,022.70 : 408,098.85 = 131,665.90 : x
  2. Step 2: Convert to fraction form
    272,022.70/408,098.85 = 131,665.90/x
  3. Step 3: Cross multiply
    272,022.70x = 408,098.85 × 131,665.90
  4. Step 4: Simplify right side
    272,022.70x = 53,732,702,374.22
  5. Step 5: Solve for x
    x = 53,732,702,374.22/272,022.70
  6. Step 6: Final answer
    x = 197,530.21

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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.