Home / 214,812.38-321,727.74-102,571.21

Finding the Fourth Proportional to 214,812.38, 321,727.74 and 102,571.21

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Solution

The fourth proportional to 214,812.38, 321,727.74 and 102,571.21 is: 153,622.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,812.38 : 321,727.74 = 102,571.21 : x
  2. Step 2: Convert to fraction form
    214,812.38/321,727.74 = 102,571.21/x
  3. Step 3: Cross multiply
    214,812.38x = 321,727.74 × 102,571.21
  4. Step 4: Simplify right side
    214,812.38x = 33,000,003,582.37
  5. Step 5: Solve for x
    x = 33,000,003,582.37/214,812.38
  6. Step 6: Final answer
    x = 153,622.45

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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.