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Finding the Fourth Proportional to 103,182.39, 154,773.45 and 68,113.71

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Solution

The fourth proportional to 103,182.39, 154,773.45 and 68,113.71 is: 102,170.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,182.39 : 154,773.45 = 68,113.71 : x
  2. Step 2: Convert to fraction form
    103,182.39/154,773.45 = 68,113.71/x
  3. Step 3: Cross multiply
    103,182.39x = 154,773.45 × 68,113.71
  4. Step 4: Simplify right side
    103,182.39x = 10,542,193,889.00
  5. Step 5: Solve for x
    x = 10,542,193,889.00/103,182.39
  6. Step 6: Final answer
    x = 102,170.48

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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.