Home / 68,786.26-103,179.53-18,867.07

Finding the Fourth Proportional to 68,786.26, 103,179.53 and 18,867.07

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Solution

The fourth proportional to 68,786.26, 103,179.53 and 18,867.07 is: 28,300.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,786.26 : 103,179.53 = 18,867.07 : x
  2. Step 2: Convert to fraction form
    68,786.26/103,179.53 = 18,867.07/x
  3. Step 3: Cross multiply
    68,786.26x = 103,179.53 × 18,867.07
  4. Step 4: Simplify right side
    68,786.26x = 1,946,695,415.08
  5. Step 5: Solve for x
    x = 1,946,695,415.08/68,786.26
  6. Step 6: Final answer
    x = 28,300.64

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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.