Home / 109,147.38-163,721.11-49,105.74

Finding the Fourth Proportional to 109,147.38, 163,721.11 and 49,105.74

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Solution

The fourth proportional to 109,147.38, 163,721.11 and 49,105.74 is: 73,658.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,147.38 : 163,721.11 = 49,105.74 : x
  2. Step 2: Convert to fraction form
    109,147.38/163,721.11 = 49,105.74/x
  3. Step 3: Cross multiply
    109,147.38x = 163,721.11 × 49,105.74
  4. Step 4: Simplify right side
    109,147.38x = 8,039,646,260.17
  5. Step 5: Solve for x
    x = 8,039,646,260.17/109,147.38
  6. Step 6: Final answer
    x = 73,658.63

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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.