Home / 214,429.89-321,521.76-81,225.18

Finding the Fourth Proportional to 214,429.89, 321,521.76 and 81,225.18

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Solution

The fourth proportional to 214,429.89, 321,521.76 and 81,225.18 is: 121,791.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,429.89 : 321,521.76 = 81,225.18 : x
  2. Step 2: Convert to fraction form
    214,429.89/321,521.76 = 81,225.18/x
  3. Step 3: Cross multiply
    214,429.89x = 321,521.76 × 81,225.18
  4. Step 4: Simplify right side
    214,429.89x = 26,115,662,829.92
  5. Step 5: Solve for x
    x = 26,115,662,829.92/214,429.89
  6. Step 6: Final answer
    x = 121,791.15

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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.