Home / 214,532.31-321,673.85-81,339.91

Finding the Fourth Proportional to 214,532.31, 321,673.85 and 81,339.91

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Solution

The fourth proportional to 214,532.31, 321,673.85 and 81,339.91 is: 121,962.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,532.31 : 321,673.85 = 81,339.91 : x
  2. Step 2: Convert to fraction form
    214,532.31/321,673.85 = 81,339.91/x
  3. Step 3: Cross multiply
    214,532.31x = 321,673.85 × 81,339.91
  4. Step 4: Simplify right side
    214,532.31x = 26,164,921,726.42
  5. Step 5: Solve for x
    x = 26,164,921,726.42/214,532.31
  6. Step 6: Final answer
    x = 121,962.62

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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.