Home / 214,835.46-322,261.29-81,690.90

Finding the Fourth Proportional to 214,835.46, 322,261.29 and 81,690.90

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Solution

The fourth proportional to 214,835.46, 322,261.29 and 81,690.90 is: 122,539.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,835.46 : 322,261.29 = 81,690.90 : x
  2. Step 2: Convert to fraction form
    214,835.46/322,261.29 = 81,690.90/x
  3. Step 3: Cross multiply
    214,835.46x = 322,261.29 × 81,690.90
  4. Step 4: Simplify right side
    214,835.46x = 26,325,814,815.26
  5. Step 5: Solve for x
    x = 26,325,814,815.26/214,835.46
  6. Step 6: Final answer
    x = 122,539.43

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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.