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Finding the Fourth Proportional to 103,049.38, 154,632.53 and 43,878.88

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Solution

The fourth proportional to 103,049.38, 154,632.53 and 43,878.88 is: 65,843.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,049.38 : 154,632.53 = 43,878.88 : x
  2. Step 2: Convert to fraction form
    103,049.38/154,632.53 = 43,878.88/x
  3. Step 3: Cross multiply
    103,049.38x = 154,632.53 × 43,878.88
  4. Step 4: Simplify right side
    103,049.38x = 6,785,102,227.97
  5. Step 5: Solve for x
    x = 6,785,102,227.97/103,049.38
  6. Step 6: Final answer
    x = 65,843.21

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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.