Home / 214,820.10-321,739.32-102,578.94

Finding the Fourth Proportional to 214,820.10, 321,739.32 and 102,578.94

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Solution

The fourth proportional to 214,820.10, 321,739.32 and 102,578.94 is: 153,634.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,820.10 : 321,739.32 = 102,578.94 : x
  2. Step 2: Convert to fraction form
    214,820.10/321,739.32 = 102,578.94/x
  3. Step 3: Cross multiply
    214,820.10x = 321,739.32 × 102,578.94
  4. Step 4: Simplify right side
    214,820.10x = 33,003,678,786.59
  5. Step 5: Solve for x
    x = 33,003,678,786.59/214,820.10
  6. Step 6: Final answer
    x = 153,634.04

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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.