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Finding the Fourth Proportional to 172,761.23, 238,418.63 and 101,164.32

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Solution

The fourth proportional to 172,761.23, 238,418.63 and 101,164.32 is: 139,611.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,761.23 : 238,418.63 = 101,164.32 : x
  2. Step 2: Convert to fraction form
    172,761.23/238,418.63 = 101,164.32/x
  3. Step 3: Cross multiply
    172,761.23x = 238,418.63 × 101,164.32
  4. Step 4: Simplify right side
    172,761.23x = 24,119,458,073.46
  5. Step 5: Solve for x
    x = 24,119,458,073.46/172,761.23
  6. Step 6: Final answer
    x = 139,611.52

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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.