Home / 214,821.10-321,740.82-102,579.94

Finding the Fourth Proportional to 214,821.10, 321,740.82 and 102,579.94

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Solution

The fourth proportional to 214,821.10, 321,740.82 and 102,579.94 is: 153,635.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,821.10 : 321,740.82 = 102,579.94 : x
  2. Step 2: Convert to fraction form
    214,821.10/321,740.82 = 102,579.94/x
  3. Step 3: Cross multiply
    214,821.10x = 321,740.82 × 102,579.94
  4. Step 4: Simplify right side
    214,821.10x = 33,004,154,011.15
  5. Step 5: Solve for x
    x = 33,004,154,011.15/214,821.10
  6. Step 6: Final answer
    x = 153,635.53

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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.