Home / 105,997.21-159,001.28-27,112.12

Finding the Fourth Proportional to 105,997.21, 159,001.28 and 27,112.12

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Solution

The fourth proportional to 105,997.21, 159,001.28 and 27,112.12 is: 40,669.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,997.21 : 159,001.28 = 27,112.12 : x
  2. Step 2: Convert to fraction form
    105,997.21/159,001.28 = 27,112.12/x
  3. Step 3: Cross multiply
    105,997.21x = 159,001.28 × 27,112.12
  4. Step 4: Simplify right side
    105,997.21x = 4,310,861,352.12
  5. Step 5: Solve for x
    x = 4,310,861,352.12/105,997.21
  6. Step 6: Final answer
    x = 40,669.57

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1.5x scale

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.