Home / 156,184.30-234,110.60-81,229.43

Finding the Fourth Proportional to 156,184.30, 234,110.60 and 81,229.43

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Solution

The fourth proportional to 156,184.30, 234,110.60 and 81,229.43 is: 121,757.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,184.30 : 234,110.60 = 81,229.43 : x
  2. Step 2: Convert to fraction form
    156,184.30/234,110.60 = 81,229.43/x
  3. Step 3: Cross multiply
    156,184.30x = 234,110.60 × 81,229.43
  4. Step 4: Simplify right side
    156,184.30x = 19,016,669,018.26
  5. Step 5: Solve for x
    x = 19,016,669,018.26/156,184.30
  6. Step 6: Final answer
    x = 121,757.88

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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.