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Finding the Fourth Proportional to 172,906.92, 238,630.86 and 101,347.47

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Solution

The fourth proportional to 172,906.92, 238,630.86 and 101,347.47 is: 139,870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,906.92 : 238,630.86 = 101,347.47 : x
  2. Step 2: Convert to fraction form
    172,906.92/238,630.86 = 101,347.47/x
  3. Step 3: Cross multiply
    172,906.92x = 238,630.86 × 101,347.47
  4. Step 4: Simplify right side
    172,906.92x = 24,184,633,924.92
  5. Step 5: Solve for x
    x = 24,184,633,924.92/172,906.92
  6. Step 6: Final answer
    x = 139,870.83

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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.