Home / 68,076.20-102,119.25-18,156.10

Finding the Fourth Proportional to 68,076.20, 102,119.25 and 18,156.10

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Solution

The fourth proportional to 68,076.20, 102,119.25 and 18,156.10 is: 27,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,076.20 : 102,119.25 = 18,156.10 : x
  2. Step 2: Convert to fraction form
    68,076.20/102,119.25 = 18,156.10/x
  3. Step 3: Cross multiply
    68,076.20x = 102,119.25 × 18,156.10
  4. Step 4: Simplify right side
    68,076.20x = 1,854,087,314.93
  5. Step 5: Solve for x
    x = 1,854,087,314.93/68,076.20
  6. Step 6: Final answer
    x = 27,235.47

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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.