Home / 214,735.52-322,230-81,727.76

Finding the Fourth Proportional to 214,735.52, 322,230 and 81,727.76

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Solution

The fourth proportional to 214,735.52, 322,230 and 81,727.76 is: 122,639.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,735.52 : 322,230 = 81,727.76 : x
  2. Step 2: Convert to fraction form
    214,735.52/322,230 = 81,727.76/x
  3. Step 3: Cross multiply
    214,735.52x = 322,230 × 81,727.76
  4. Step 4: Simplify right side
    214,735.52x = 26,335,136,104.80
  5. Step 5: Solve for x
    x = 26,335,136,104.80/214,735.52
  6. Step 6: Final answer
    x = 122,639.87

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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.