Home / 68,074.20-102,116.25-18,154.10

Finding the Fourth Proportional to 68,074.20, 102,116.25 and 18,154.10

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Solution

The fourth proportional to 68,074.20, 102,116.25 and 18,154.10 is: 27,232.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,074.20 : 102,116.25 = 18,154.10 : x
  2. Step 2: Convert to fraction form
    68,074.20/102,116.25 = 18,154.10/x
  3. Step 3: Cross multiply
    68,074.20x = 102,116.25 × 18,154.10
  4. Step 4: Simplify right side
    68,074.20x = 1,853,828,103.54
  5. Step 5: Solve for x
    x = 1,853,828,103.54/68,074.20
  6. Step 6: Final answer
    x = 27,232.46

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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.