Home / 214,308.52-321,445.98-81,176.68

Finding the Fourth Proportional to 214,308.52, 321,445.98 and 81,176.68

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Solution

The fourth proportional to 214,308.52, 321,445.98 and 81,176.68 is: 121,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,308.52 : 321,445.98 = 81,176.68 : x
  2. Step 2: Convert to fraction form
    214,308.52/321,445.98 = 81,176.68/x
  3. Step 3: Cross multiply
    214,308.52x = 321,445.98 × 81,176.68
  4. Step 4: Simplify right side
    214,308.52x = 26,093,917,455.75
  5. Step 5: Solve for x
    x = 26,093,917,455.75/214,308.52
  6. Step 6: Final answer
    x = 121,758.66

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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.