Home / 172,906.32-259,372.85-66,341.28

Finding the Fourth Proportional to 172,906.32, 259,372.85 and 66,341.28

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Solution

The fourth proportional to 172,906.32, 259,372.85 and 66,341.28 is: 99,517.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,906.32 : 259,372.85 = 66,341.28 : x
  2. Step 2: Convert to fraction form
    172,906.32/259,372.85 = 66,341.28/x
  3. Step 3: Cross multiply
    172,906.32x = 259,372.85 × 66,341.28
  4. Step 4: Simplify right side
    172,906.32x = 17,207,126,534.54
  5. Step 5: Solve for x
    x = 17,207,126,534.54/172,906.32
  6. Step 6: Final answer
    x = 99,517.05

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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.