Home / 268,131.58-402,196.86-68,451.90

Finding the Fourth Proportional to 268,131.58, 402,196.86 and 68,451.90

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Solution

The fourth proportional to 268,131.58, 402,196.86 and 68,451.90 is: 102,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,131.58 : 402,196.86 = 68,451.90 : x
  2. Step 2: Convert to fraction form
    268,131.58/402,196.86 = 68,451.90/x
  3. Step 3: Cross multiply
    268,131.58x = 402,196.86 × 68,451.90
  4. Step 4: Simplify right side
    268,131.58x = 27,531,137,732.80
  5. Step 5: Solve for x
    x = 27,531,137,732.80/268,131.58
  6. Step 6: Final answer
    x = 102,677.72

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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.