Home / 68,734.26-103,101.39-18,812.34

Finding the Fourth Proportional to 68,734.26, 103,101.39 and 18,812.34

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Solution

The fourth proportional to 68,734.26, 103,101.39 and 18,812.34 is: 28,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,734.26 : 103,101.39 = 18,812.34 : x
  2. Step 2: Convert to fraction form
    68,734.26/103,101.39 = 18,812.34/x
  3. Step 3: Cross multiply
    68,734.26x = 103,101.39 × 18,812.34
  4. Step 4: Simplify right side
    68,734.26x = 1,939,578,403.15
  5. Step 5: Solve for x
    x = 1,939,578,403.15/68,734.26
  6. Step 6: Final answer
    x = 28,218.51

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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.