Home / 156,917.98-216,540.84-85,296.52

Finding the Fourth Proportional to 156,917.98, 216,540.84 and 85,296.52

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Solution

The fourth proportional to 156,917.98, 216,540.84 and 85,296.52 is: 117,705.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,917.98 : 216,540.84 = 85,296.52 : x
  2. Step 2: Convert to fraction form
    156,917.98/216,540.84 = 85,296.52/x
  3. Step 3: Cross multiply
    156,917.98x = 216,540.84 × 85,296.52
  4. Step 4: Simplify right side
    156,917.98x = 18,470,180,089.88
  5. Step 5: Solve for x
    x = 18,470,180,089.88/156,917.98
  6. Step 6: Final answer
    x = 117,705.95

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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.