Home / 108,680.45-163,021.23-49,474.71

Finding the Fourth Proportional to 108,680.45, 163,021.23 and 49,474.71

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Solution

The fourth proportional to 108,680.45, 163,021.23 and 49,474.71 is: 74,212.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,680.45 : 163,021.23 = 49,474.71 : x
  2. Step 2: Convert to fraction form
    108,680.45/163,021.23 = 49,474.71/x
  3. Step 3: Cross multiply
    108,680.45x = 163,021.23 × 49,474.71
  4. Step 4: Simplify right side
    108,680.45x = 8,065,428,078.09
  5. Step 5: Solve for x
    x = 8,065,428,078.09/108,680.45
  6. Step 6: Final answer
    x = 74,212.32

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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.