Home / 156,917.36-216,546.45-85,297.61

Finding the Fourth Proportional to 156,917.36, 216,546.45 and 85,297.61

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Solution

The fourth proportional to 156,917.36, 216,546.45 and 85,297.61 is: 117,710.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,917.36 : 216,546.45 = 85,297.61 : x
  2. Step 2: Convert to fraction form
    156,917.36/216,546.45 = 85,297.61/x
  3. Step 3: Cross multiply
    156,917.36x = 216,546.45 × 85,297.61
  4. Step 4: Simplify right side
    156,917.36x = 18,470,894,638.98
  5. Step 5: Solve for x
    x = 18,470,894,638.98/156,917.36
  6. Step 6: Final answer
    x = 117,710.97

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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.