Home / 156,138.12-234,213.66-45,330.12

Finding the Fourth Proportional to 156,138.12, 234,213.66 and 45,330.12

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Solution

The fourth proportional to 156,138.12, 234,213.66 and 45,330.12 is: 67,997.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,138.12 : 234,213.66 = 45,330.12 : x
  2. Step 2: Convert to fraction form
    156,138.12/234,213.66 = 45,330.12/x
  3. Step 3: Cross multiply
    156,138.12x = 234,213.66 × 45,330.12
  4. Step 4: Simplify right side
    156,138.12x = 10,616,933,313.44
  5. Step 5: Solve for x
    x = 10,616,933,313.44/156,138.12
  6. Step 6: Final answer
    x = 67,997.06

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1.5x scale

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.