Home / 68,796.12-103,194.33-18,876.90

Finding the Fourth Proportional to 68,796.12, 103,194.33 and 18,876.90

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Solution

The fourth proportional to 68,796.12, 103,194.33 and 18,876.90 is: 28,315.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,796.12 : 103,194.33 = 18,876.90 : x
  2. Step 2: Convert to fraction form
    68,796.12/103,194.33 = 18,876.90/x
  3. Step 3: Cross multiply
    68,796.12x = 103,194.33 × 18,876.90
  4. Step 4: Simplify right side
    68,796.12x = 1,947,989,047.98
  5. Step 5: Solve for x
    x = 1,947,989,047.98/68,796.12
  6. Step 6: Final answer
    x = 28,315.39

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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.