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Finding the Fourth Proportional to 131,469.70, 197,204.55 and 89,997.70

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Solution

The fourth proportional to 131,469.70, 197,204.55 and 89,997.70 is: 134,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,469.70 : 197,204.55 = 89,997.70 : x
  2. Step 2: Convert to fraction form
    131,469.70/197,204.55 = 89,997.70/x
  3. Step 3: Cross multiply
    131,469.70x = 197,204.55 × 89,997.70
  4. Step 4: Simplify right side
    131,469.70x = 17,747,955,929.54
  5. Step 5: Solve for x
    x = 17,747,955,929.54/131,469.70
  6. Step 6: Final answer
    x = 134,996.55

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1.5x scale

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.