Home / 109,190.27-163,790.06-38,120.06

Finding the Fourth Proportional to 109,190.27, 163,790.06 and 38,120.06

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Solution

The fourth proportional to 109,190.27, 163,790.06 and 38,120.06 is: 57,181.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,190.27 : 163,790.06 = 38,120.06 : x
  2. Step 2: Convert to fraction form
    109,190.27/163,790.06 = 38,120.06/x
  3. Step 3: Cross multiply
    109,190.27x = 163,790.06 × 38,120.06
  4. Step 4: Simplify right side
    109,190.27x = 6,243,685,905.05
  5. Step 5: Solve for x
    x = 6,243,685,905.05/109,190.27
  6. Step 6: Final answer
    x = 57,181.71

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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.