Home / 216,942.12-325,442.88-67,194.72

Finding the Fourth Proportional to 216,942.12, 325,442.88 and 67,194.72

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Solution

The fourth proportional to 216,942.12, 325,442.88 and 67,194.72 is: 100,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,942.12 : 325,442.88 = 67,194.72 : x
  2. Step 2: Convert to fraction form
    216,942.12/325,442.88 = 67,194.72/x
  3. Step 3: Cross multiply
    216,942.12x = 325,442.88 × 67,194.72
  4. Step 4: Simplify right side
    216,942.12x = 21,868,043,197.59
  5. Step 5: Solve for x
    x = 21,868,043,197.59/216,942.12
  6. Step 6: Final answer
    x = 100,801.28

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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.