Home / 156,449.68-234,672.12-38,121.20

Finding the Fourth Proportional to 156,449.68, 234,672.12 and 38,121.20

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Solution

The fourth proportional to 156,449.68, 234,672.12 and 38,121.20 is: 57,181.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,449.68 : 234,672.12 = 38,121.20 : x
  2. Step 2: Convert to fraction form
    156,449.68/234,672.12 = 38,121.20/x
  3. Step 3: Cross multiply
    156,449.68x = 234,672.12 × 38,121.20
  4. Step 4: Simplify right side
    156,449.68x = 8,945,982,820.94
  5. Step 5: Solve for x
    x = 8,945,982,820.94/156,449.68
  6. Step 6: Final answer
    x = 57,181.22

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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.