Home / 156,418.25-215,855.90-84,796.43

Finding the Fourth Proportional to 156,418.25, 215,855.90 and 84,796.43

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Solution

The fourth proportional to 156,418.25, 215,855.90 and 84,796.43 is: 117,018.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,418.25 : 215,855.90 = 84,796.43 : x
  2. Step 2: Convert to fraction form
    156,418.25/215,855.90 = 84,796.43/x
  3. Step 3: Cross multiply
    156,418.25x = 215,855.90 × 84,796.43
  4. Step 4: Simplify right side
    156,418.25x = 18,303,809,714.44
  5. Step 5: Solve for x
    x = 18,303,809,714.44/156,418.25
  6. Step 6: Final answer
    x = 117,018.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.