Home / 172,991.08-238,593.36-109,305.64

Finding the Fourth Proportional to 172,991.08, 238,593.36 and 109,305.64

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Solution

The fourth proportional to 172,991.08, 238,593.36 and 109,305.64 is: 150,756.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,991.08 : 238,593.36 = 109,305.64 : x
  2. Step 2: Convert to fraction form
    172,991.08/238,593.36 = 109,305.64/x
  3. Step 3: Cross multiply
    172,991.08x = 238,593.36 × 109,305.64
  4. Step 4: Simplify right side
    172,991.08x = 26,079,599,914.55
  5. Step 5: Solve for x
    x = 26,079,599,914.55/172,991.08
  6. Step 6: Final answer
    x = 150,756.91

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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.