Home / 68,786.31-103,179.62-18,867.13

Finding the Fourth Proportional to 68,786.31, 103,179.62 and 18,867.13

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Solution

The fourth proportional to 68,786.31, 103,179.62 and 18,867.13 is: 28,300.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,786.31 : 103,179.62 = 18,867.13 : x
  2. Step 2: Convert to fraction form
    68,786.31/103,179.62 = 18,867.13/x
  3. Step 3: Cross multiply
    68,786.31x = 103,179.62 × 18,867.13
  4. Step 4: Simplify right side
    68,786.31x = 1,946,703,093.11
  5. Step 5: Solve for x
    x = 1,946,703,093.11/68,786.31
  6. Step 6: Final answer
    x = 28,300.73

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1.5x scale

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.