Home / 216,132.40-323,968.20-82,961.20

Finding the Fourth Proportional to 216,132.40, 323,968.20 and 82,961.20

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Solution

The fourth proportional to 216,132.40, 323,968.20 and 82,961.20 is: 124,353.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,132.40 : 323,968.20 = 82,961.20 : x
  2. Step 2: Convert to fraction form
    216,132.40/323,968.20 = 82,961.20/x
  3. Step 3: Cross multiply
    216,132.40x = 323,968.20 × 82,961.20
  4. Step 4: Simplify right side
    216,132.40x = 26,876,790,633.84
  5. Step 5: Solve for x
    x = 26,876,790,633.84/216,132.40
  6. Step 6: Final answer
    x = 124,353.36

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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.