Home / 156,997.15-216,660.94-89,016.99

Finding the Fourth Proportional to 156,997.15, 216,660.94 and 89,016.99

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Solution

The fourth proportional to 156,997.15, 216,660.94 and 89,016.99 is: 122,846.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,997.15 : 216,660.94 = 89,016.99 : x
  2. Step 2: Convert to fraction form
    156,997.15/216,660.94 = 89,016.99/x
  3. Step 3: Cross multiply
    156,997.15x = 216,660.94 × 89,016.99
  4. Step 4: Simplify right side
    156,997.15x = 19,286,504,729.37
  5. Step 5: Solve for x
    x = 19,286,504,729.37/156,997.15
  6. Step 6: Final answer
    x = 122,846.21

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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.