Home / 156,137.22-234,287.84-85,110.75

Finding the Fourth Proportional to 156,137.22, 234,287.84 and 85,110.75

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Solution

The fourth proportional to 156,137.22, 234,287.84 and 85,110.75 is: 127,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,137.22 : 234,287.84 = 85,110.75 : x
  2. Step 2: Convert to fraction form
    156,137.22/234,287.84 = 85,110.75/x
  3. Step 3: Cross multiply
    156,137.22x = 234,287.84 × 85,110.75
  4. Step 4: Simplify right side
    156,137.22x = 19,940,413,991.06
  5. Step 5: Solve for x
    x = 19,940,413,991.06/156,137.22
  6. Step 6: Final answer
    x = 127,710.83

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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.