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Finding the Fourth Proportional to 173,195.78, 238,942.18 and 100,586.32

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Solution

The fourth proportional to 173,195.78, 238,942.18 and 100,586.32 is: 138,769.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,195.78 : 238,942.18 = 100,586.32 : x
  2. Step 2: Convert to fraction form
    173,195.78/238,942.18 = 100,586.32/x
  3. Step 3: Cross multiply
    173,195.78x = 238,942.18 × 100,586.32
  4. Step 4: Simplify right side
    173,195.78x = 24,034,314,578.98
  5. Step 5: Solve for x
    x = 24,034,314,578.98/173,195.78
  6. Step 6: Final answer
    x = 138,769.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.