Home / 68,786.76-103,180.29-18,867.57

Finding the Fourth Proportional to 68,786.76, 103,180.29 and 18,867.57

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Solution

The fourth proportional to 68,786.76, 103,180.29 and 18,867.57 is: 28,301.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,786.76 : 103,180.29 = 18,867.57 : x
  2. Step 2: Convert to fraction form
    68,786.76/103,180.29 = 18,867.57/x
  3. Step 3: Cross multiply
    68,786.76x = 103,180.29 × 18,867.57
  4. Step 4: Simplify right side
    68,786.76x = 1,946,761,344.20
  5. Step 5: Solve for x
    x = 1,946,761,344.20/68,786.76
  6. Step 6: Final answer
    x = 28,301.40

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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.