Home / 214,111.36-321,172.23-71,958.70

Finding the Fourth Proportional to 214,111.36, 321,172.23 and 71,958.70

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Solution

The fourth proportional to 214,111.36, 321,172.23 and 71,958.70 is: 107,939.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,111.36 : 321,172.23 = 71,958.70 : x
  2. Step 2: Convert to fraction form
    214,111.36/321,172.23 = 71,958.70/x
  3. Step 3: Cross multiply
    214,111.36x = 321,172.23 × 71,958.70
  4. Step 4: Simplify right side
    214,111.36x = 23,111,134,541.04
  5. Step 5: Solve for x
    x = 23,111,134,541.04/214,111.36
  6. Step 6: Final answer
    x = 107,939.79

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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.