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Finding the Fourth Proportional to 172,806.12, 238,477.50 and 101,179.44

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Solution

The fourth proportional to 172,806.12, 238,477.50 and 101,179.44 is: 139,630.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,806.12 : 238,477.50 = 101,179.44 : x
  2. Step 2: Convert to fraction form
    172,806.12/238,477.50 = 101,179.44/x
  3. Step 3: Cross multiply
    172,806.12x = 238,477.50 × 101,179.44
  4. Step 4: Simplify right side
    172,806.12x = 24,129,019,902.60
  5. Step 5: Solve for x
    x = 24,129,019,902.60/172,806.12
  6. Step 6: Final answer
    x = 139,630.59

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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.