Home / 103,169.28-154,753.97-68,100.74

Finding the Fourth Proportional to 103,169.28, 154,753.97 and 68,100.74

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Solution

The fourth proportional to 103,169.28, 154,753.97 and 68,100.74 is: 102,151.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,169.28 : 154,753.97 = 68,100.74 : x
  2. Step 2: Convert to fraction form
    103,169.28/154,753.97 = 68,100.74/x
  3. Step 3: Cross multiply
    103,169.28x = 154,753.97 × 68,100.74
  4. Step 4: Simplify right side
    103,169.28x = 10,538,858,760.66
  5. Step 5: Solve for x
    x = 10,538,858,760.66/103,169.28
  6. Step 6: Final answer
    x = 102,151.13

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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.