Home / 214,537.60-321,921.60-89,891.20

Finding the Fourth Proportional to 214,537.60, 321,921.60 and 89,891.20

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Solution

The fourth proportional to 214,537.60, 321,921.60 and 89,891.20 is: 134,885.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,537.60 : 321,921.60 = 89,891.20 : x
  2. Step 2: Convert to fraction form
    214,537.60/321,921.60 = 89,891.20/x
  3. Step 3: Cross multiply
    214,537.60x = 321,921.60 × 89,891.20
  4. Step 4: Simplify right side
    214,537.60x = 28,937,918,929.92
  5. Step 5: Solve for x
    x = 28,937,918,929.92/214,537.60
  6. Step 6: Final answer
    x = 134,885.07

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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.