Home / 214,470.39-321,496.38-102,120.42

Finding the Fourth Proportional to 214,470.39, 321,496.38 and 102,120.42

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Solution

The fourth proportional to 214,470.39, 321,496.38 and 102,120.42 is: 153,081.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,470.39 : 321,496.38 = 102,120.42 : x
  2. Step 2: Convert to fraction form
    214,470.39/321,496.38 = 102,120.42/x
  3. Step 3: Cross multiply
    214,470.39x = 321,496.38 × 102,120.42
  4. Step 4: Simplify right side
    214,470.39x = 32,831,345,354.08
  5. Step 5: Solve for x
    x = 32,831,345,354.08/214,470.39
  6. Step 6: Final answer
    x = 153,081.02

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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.