Home / 131,938.45-197,440.50-82,042.04

Finding the Fourth Proportional to 131,938.45, 197,440.50 and 82,042.04

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Solution

The fourth proportional to 131,938.45, 197,440.50 and 82,042.04 is: 122,772.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,938.45 : 197,440.50 = 82,042.04 : x
  2. Step 2: Convert to fraction form
    131,938.45/197,440.50 = 82,042.04/x
  3. Step 3: Cross multiply
    131,938.45x = 197,440.50 × 82,042.04
  4. Step 4: Simplify right side
    131,938.45x = 16,198,421,398.62
  5. Step 5: Solve for x
    x = 16,198,421,398.62/131,938.45
  6. Step 6: Final answer
    x = 122,772.57

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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.