Home / 68,156.45-102,226.85-18,240.43

Finding the Fourth Proportional to 68,156.45, 102,226.85 and 18,240.43

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Solution

The fourth proportional to 68,156.45, 102,226.85 and 18,240.43 is: 27,358.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,156.45 : 102,226.85 = 18,240.43 : x
  2. Step 2: Convert to fraction form
    68,156.45/102,226.85 = 18,240.43/x
  3. Step 3: Cross multiply
    68,156.45x = 102,226.85 × 18,240.43
  4. Step 4: Simplify right side
    68,156.45x = 1,864,661,610.34
  5. Step 5: Solve for x
    x = 1,864,661,610.34/68,156.45
  6. Step 6: Final answer
    x = 27,358.55

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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.