Home / 214,066.15-321,164.01-80,987.20

Finding the Fourth Proportional to 214,066.15, 321,164.01 and 80,987.20

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Solution

The fourth proportional to 214,066.15, 321,164.01 and 80,987.20 is: 121,505.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,066.15 : 321,164.01 = 80,987.20 : x
  2. Step 2: Convert to fraction form
    214,066.15/321,164.01 = 80,987.20/x
  3. Step 3: Cross multiply
    214,066.15x = 321,164.01 × 80,987.20
  4. Step 4: Simplify right side
    214,066.15x = 26,010,173,910.67
  5. Step 5: Solve for x
    x = 26,010,173,910.67/214,066.15
  6. Step 6: Final answer
    x = 121,505.31

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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.