Home / 214,215.46-321,100.38-71,955.16

Finding the Fourth Proportional to 214,215.46, 321,100.38 and 71,955.16

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Solution

The fourth proportional to 214,215.46, 321,100.38 and 71,955.16 is: 107,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,215.46 : 321,100.38 = 71,955.16 : x
  2. Step 2: Convert to fraction form
    214,215.46/321,100.38 = 71,955.16/x
  3. Step 3: Cross multiply
    214,215.46x = 321,100.38 × 71,955.16
  4. Step 4: Simplify right side
    214,215.46x = 23,104,829,218.96
  5. Step 5: Solve for x
    x = 23,104,829,218.96/214,215.46
  6. Step 6: Final answer
    x = 107,857.90

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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.