Home / 214,935.40-321,965.70-109,813.60

Finding the Fourth Proportional to 214,935.40, 321,965.70 and 109,813.60

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Solution

The fourth proportional to 214,935.40, 321,965.70 and 109,813.60 is: 164,496.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,935.40 : 321,965.70 = 109,813.60 : x
  2. Step 2: Convert to fraction form
    214,935.40/321,965.70 = 109,813.60/x
  3. Step 3: Cross multiply
    214,935.40x = 321,965.70 × 109,813.60
  4. Step 4: Simplify right side
    214,935.40x = 35,356,212,593.52
  5. Step 5: Solve for x
    x = 35,356,212,593.52/214,935.40
  6. Step 6: Final answer
    x = 164,496.93

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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.