Home / 135,396.20-186,845.22-74,968.04

Finding the Fourth Proportional to 135,396.20, 186,845.22 and 74,968.04

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Solution

The fourth proportional to 135,396.20, 186,845.22 and 74,968.04 is: 103,455.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,396.20 : 186,845.22 = 74,968.04 : x
  2. Step 2: Convert to fraction form
    135,396.20/186,845.22 = 74,968.04/x
  3. Step 3: Cross multiply
    135,396.20x = 186,845.22 × 74,968.04
  4. Step 4: Simplify right side
    135,396.20x = 14,007,419,926.77
  5. Step 5: Solve for x
    x = 14,007,419,926.77/135,396.20
  6. Step 6: Final answer
    x = 103,455.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.