Home / 214,580.60-321,986.10-89,934.20

Finding the Fourth Proportional to 214,580.60, 321,986.10 and 89,934.20

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Solution

The fourth proportional to 214,580.60, 321,986.10 and 89,934.20 is: 134,949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,580.60 : 321,986.10 = 89,934.20 : x
  2. Step 2: Convert to fraction form
    214,580.60/321,986.10 = 89,934.20/x
  3. Step 3: Cross multiply
    214,580.60x = 321,986.10 × 89,934.20
  4. Step 4: Simplify right side
    214,580.60x = 28,957,562,314.62
  5. Step 5: Solve for x
    x = 28,957,562,314.62/214,580.60
  6. Step 6: Final answer
    x = 134,949.58

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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.