Home / 156,917.11-216,546.11-85,297.36

Finding the Fourth Proportional to 156,917.11, 216,546.11 and 85,297.36

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Solution

The fourth proportional to 156,917.11, 216,546.11 and 85,297.36 is: 117,710.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,917.11 : 216,546.11 = 85,297.36 : x
  2. Step 2: Convert to fraction form
    156,917.11/216,546.11 = 85,297.36/x
  3. Step 3: Cross multiply
    156,917.11x = 216,546.11 × 85,297.36
  4. Step 4: Simplify right side
    156,917.11x = 18,470,811,501.27
  5. Step 5: Solve for x
    x = 18,470,811,501.27/156,917.11
  6. Step 6: Final answer
    x = 117,710.63

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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.