Home / 217,120.58-325,704.94-74,949.75

Finding the Fourth Proportional to 217,120.58, 325,704.94 and 74,949.75

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Solution

The fourth proportional to 217,120.58, 325,704.94 and 74,949.75 is: 112,432.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,120.58 : 325,704.94 = 74,949.75 : x
  2. Step 2: Convert to fraction form
    217,120.58/325,704.94 = 74,949.75/x
  3. Step 3: Cross multiply
    217,120.58x = 325,704.94 × 74,949.75
  4. Step 4: Simplify right side
    217,120.58x = 24,411,503,639.39
  5. Step 5: Solve for x
    x = 24,411,503,639.39/217,120.58
  6. Step 6: Final answer
    x = 112,432.93

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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.