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Finding the Fourth Proportional to 199,697.82, 299,640.06 and 87,363.48

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Solution

The fourth proportional to 199,697.82, 299,640.06 and 87,363.48 is: 131,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,697.82 : 299,640.06 = 87,363.48 : x
  2. Step 2: Convert to fraction form
    199,697.82/299,640.06 = 87,363.48/x
  3. Step 3: Cross multiply
    199,697.82x = 299,640.06 × 87,363.48
  4. Step 4: Simplify right side
    199,697.82x = 26,177,598,389.01
  5. Step 5: Solve for x
    x = 26,177,598,389.01/199,697.82
  6. Step 6: Final answer
    x = 131,086.05

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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.