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Finding the Fourth Proportional to 172,758.49, 238,414.83 and 101,161.57

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Solution

The fourth proportional to 172,758.49, 238,414.83 and 101,161.57 is: 139,607.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,758.49 : 238,414.83 = 101,161.57 : x
  2. Step 2: Convert to fraction form
    172,758.49/238,414.83 = 101,161.57/x
  3. Step 3: Cross multiply
    172,758.49x = 238,414.83 × 101,161.57
  4. Step 4: Simplify right side
    172,758.49x = 24,118,418,514.08
  5. Step 5: Solve for x
    x = 24,118,418,514.08/172,758.49
  6. Step 6: Final answer
    x = 139,607.72

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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.