Home / 156,505.72-215,906.16-92,820.28

Finding the Fourth Proportional to 156,505.72, 215,906.16 and 92,820.28

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Solution

The fourth proportional to 156,505.72, 215,906.16 and 92,820.28 is: 128,049.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,505.72 : 215,906.16 = 92,820.28 : x
  2. Step 2: Convert to fraction form
    156,505.72/215,906.16 = 92,820.28/x
  3. Step 3: Cross multiply
    156,505.72x = 215,906.16 × 92,820.28
  4. Step 4: Simplify right side
    156,505.72x = 20,040,470,224.92
  5. Step 5: Solve for x
    x = 20,040,470,224.92/156,505.72
  6. Step 6: Final answer
    x = 128,049.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.