Home / 214,269.78-321,432.12-72,054.12

Finding the Fourth Proportional to 214,269.78, 321,432.12 and 72,054.12

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Solution

The fourth proportional to 214,269.78, 321,432.12 and 72,054.12 is: 108,090.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,269.78 : 321,432.12 = 72,054.12 : x
  2. Step 2: Convert to fraction form
    214,269.78/321,432.12 = 72,054.12/x
  3. Step 3: Cross multiply
    214,269.78x = 321,432.12 × 72,054.12
  4. Step 4: Simplify right side
    214,269.78x = 23,160,508,546.33
  5. Step 5: Solve for x
    x = 23,160,508,546.33/214,269.78
  6. Step 6: Final answer
    x = 108,090.41

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1.5x scale

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.