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Finding the Fourth Proportional to 172,707.33, 259,095.92 and 72,867.77

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Solution

The fourth proportional to 172,707.33, 259,095.92 and 72,867.77 is: 109,316.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,707.33 : 259,095.92 = 72,867.77 : x
  2. Step 2: Convert to fraction form
    172,707.33/259,095.92 = 72,867.77/x
  3. Step 3: Cross multiply
    172,707.33x = 259,095.92 × 72,867.77
  4. Step 4: Simplify right side
    172,707.33x = 18,879,740,246.68
  5. Step 5: Solve for x
    x = 18,879,740,246.68/172,707.33
  6. Step 6: Final answer
    x = 109,316.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.