Home / 214,691.22-322,036.56-81,539.64

Finding the Fourth Proportional to 214,691.22, 322,036.56 and 81,539.64

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Solution

The fourth proportional to 214,691.22, 322,036.56 and 81,539.64 is: 122,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,691.22 : 322,036.56 = 81,539.64 : x
  2. Step 2: Convert to fraction form
    214,691.22/322,036.56 = 81,539.64/x
  3. Step 3: Cross multiply
    214,691.22x = 322,036.56 × 81,539.64
  4. Step 4: Simplify right side
    214,691.22x = 26,258,744,058.37
  5. Step 5: Solve for x
    x = 26,258,744,058.37/214,691.22
  6. Step 6: Final answer
    x = 122,309.35

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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.