Home / 156,670.20-234,720.18-139,874.04

Finding the Fourth Proportional to 156,670.20, 234,720.18 and 139,874.04

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Solution

The fourth proportional to 156,670.20, 234,720.18 and 139,874.04 is: 209,556.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,670.20 : 234,720.18 = 139,874.04 : x
  2. Step 2: Convert to fraction form
    156,670.20/234,720.18 = 139,874.04/x
  3. Step 3: Cross multiply
    156,670.20x = 234,720.18 × 139,874.04
  4. Step 4: Simplify right side
    156,670.20x = 32,831,259,846.13
  5. Step 5: Solve for x
    x = 32,831,259,846.13/156,670.20
  6. Step 6: Final answer
    x = 209,556.51

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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.