Home / 214,759.78-321,997.48-102,457.33

Finding the Fourth Proportional to 214,759.78, 321,997.48 and 102,457.33

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Solution

The fourth proportional to 214,759.78, 321,997.48 and 102,457.33 is: 153,618.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,759.78 : 321,997.48 = 102,457.33 : x
  2. Step 2: Convert to fraction form
    214,759.78/321,997.48 = 102,457.33/x
  3. Step 3: Cross multiply
    214,759.78x = 321,997.48 × 102,457.33
  4. Step 4: Simplify right side
    214,759.78x = 32,991,001,006.39
  5. Step 5: Solve for x
    x = 32,991,001,006.39/214,759.78
  6. Step 6: Final answer
    x = 153,618.16

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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.