Home / 214,547.97-321,868.10-72,396.78

Finding the Fourth Proportional to 214,547.97, 321,868.10 and 72,396.78

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Solution

The fourth proportional to 214,547.97, 321,868.10 and 72,396.78 is: 108,610.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,547.97 : 321,868.10 = 72,396.78 : x
  2. Step 2: Convert to fraction form
    214,547.97/321,868.10 = 72,396.78/x
  3. Step 3: Cross multiply
    214,547.97x = 321,868.10 × 72,396.78
  4. Step 4: Simplify right side
    214,547.97x = 23,302,212,998.70
  5. Step 5: Solve for x
    x = 23,302,212,998.70/214,547.97
  6. Step 6: Final answer
    x = 108,610.73

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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.