Home / 214,262.55-321,397.07-81,107.06

Finding the Fourth Proportional to 214,262.55, 321,397.07 and 81,107.06

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Solution

The fourth proportional to 214,262.55, 321,397.07 and 81,107.06 is: 121,661.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,262.55 : 321,397.07 = 81,107.06 : x
  2. Step 2: Convert to fraction form
    214,262.55/321,397.07 = 81,107.06/x
  3. Step 3: Cross multiply
    214,262.55x = 321,397.07 × 81,107.06
  4. Step 4: Simplify right side
    214,262.55x = 26,067,569,427.79
  5. Step 5: Solve for x
    x = 26,067,569,427.79/214,262.55
  6. Step 6: Final answer
    x = 121,661.81

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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.