Home / 156,917.06-216,540.94-85,295.24

Finding the Fourth Proportional to 156,917.06, 216,540.94 and 85,295.24

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Solution

The fourth proportional to 156,917.06, 216,540.94 and 85,295.24 is: 117,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,917.06 : 216,540.94 = 85,295.24 : x
  2. Step 2: Convert to fraction form
    156,917.06/216,540.94 = 85,295.24/x
  3. Step 3: Cross multiply
    156,917.06x = 216,540.94 × 85,295.24
  4. Step 4: Simplify right side
    156,917.06x = 18,469,911,447.13
  5. Step 5: Solve for x
    x = 18,469,911,447.13/156,917.06
  6. Step 6: Final answer
    x = 117,704.93

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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.