Home / 214,915.77-321,930.63-125,899.38

Finding the Fourth Proportional to 214,915.77, 321,930.63 and 125,899.38

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Solution

The fourth proportional to 214,915.77, 321,930.63 and 125,899.38 is: 188,589.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,915.77 : 321,930.63 = 125,899.38 : x
  2. Step 2: Convert to fraction form
    214,915.77/321,930.63 = 125,899.38/x
  3. Step 3: Cross multiply
    214,915.77x = 321,930.63 × 125,899.38
  4. Step 4: Simplify right side
    214,915.77x = 40,530,866,720.01
  5. Step 5: Solve for x
    x = 40,530,866,720.01/214,915.77
  6. Step 6: Final answer
    x = 188,589.54

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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.