Home / 214,288.03-321,370.08-72,117.64

Finding the Fourth Proportional to 214,288.03, 321,370.08 and 72,117.64

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Solution

The fourth proportional to 214,288.03, 321,370.08 and 72,117.64 is: 108,155.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,288.03 : 321,370.08 = 72,117.64 : x
  2. Step 2: Convert to fraction form
    214,288.03/321,370.08 = 72,117.64/x
  3. Step 3: Cross multiply
    214,288.03x = 321,370.08 × 72,117.64
  4. Step 4: Simplify right side
    214,288.03x = 23,176,451,736.21
  5. Step 5: Solve for x
    x = 23,176,451,736.21/214,288.03
  6. Step 6: Final answer
    x = 108,155.61

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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.