Home / 214,284.24-321,401.68-86,195.72

Finding the Fourth Proportional to 214,284.24, 321,401.68 and 86,195.72

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Solution

The fourth proportional to 214,284.24, 321,401.68 and 86,195.72 is: 129,283.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,284.24 : 321,401.68 = 86,195.72 : x
  2. Step 2: Convert to fraction form
    214,284.24/321,401.68 = 86,195.72/x
  3. Step 3: Cross multiply
    214,284.24x = 321,401.68 × 86,195.72
  4. Step 4: Simplify right side
    214,284.24x = 27,703,449,216.81
  5. Step 5: Solve for x
    x = 27,703,449,216.81/214,284.24
  6. Step 6: Final answer
    x = 129,283.65

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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.