Home / 214,968.60-322,456.05-81,856.22

Finding the Fourth Proportional to 214,968.60, 322,456.05 and 81,856.22

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Solution

The fourth proportional to 214,968.60, 322,456.05 and 81,856.22 is: 122,785.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,968.60 : 322,456.05 = 81,856.22 : x
  2. Step 2: Convert to fraction form
    214,968.60/322,456.05 = 81,856.22/x
  3. Step 3: Cross multiply
    214,968.60x = 322,456.05 × 81,856.22
  4. Step 4: Simplify right side
    214,968.60x = 26,395,031,756.85
  5. Step 5: Solve for x
    x = 26,395,031,756.85/214,968.60
  6. Step 6: Final answer
    x = 122,785.52

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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.