Home / 216,100.62-323,745.39-82,890.45

Finding the Fourth Proportional to 216,100.62, 323,745.39 and 82,890.45

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Solution

The fourth proportional to 216,100.62, 323,745.39 and 82,890.45 is: 124,180.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,100.62 : 323,745.39 = 82,890.45 : x
  2. Step 2: Convert to fraction form
    216,100.62/323,745.39 = 82,890.45/x
  3. Step 3: Cross multiply
    216,100.62x = 323,745.39 × 82,890.45
  4. Step 4: Simplify right side
    216,100.62x = 26,835,401,062.53
  5. Step 5: Solve for x
    x = 26,835,401,062.53/216,100.62
  6. Step 6: Final answer
    x = 124,180.12

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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.