Home / 109,120.56-163,687.76-34,243.66

Finding the Fourth Proportional to 109,120.56, 163,687.76 and 34,243.66

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Solution

The fourth proportional to 109,120.56, 163,687.76 and 34,243.66 is: 51,367.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,120.56 : 163,687.76 = 34,243.66 : x
  2. Step 2: Convert to fraction form
    109,120.56/163,687.76 = 34,243.66/x
  3. Step 3: Cross multiply
    109,120.56x = 163,687.76 × 34,243.66
  4. Step 4: Simplify right side
    109,120.56x = 5,605,268,085.21
  5. Step 5: Solve for x
    x = 5,605,268,085.21/109,120.56
  6. Step 6: Final answer
    x = 51,367.66

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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.