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Finding the Fourth Proportional to 120,183, 165,846.02 and 66,464.88

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Solution

The fourth proportional to 120,183, 165,846.02 and 66,464.88 is: 91,717.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,183 : 165,846.02 = 66,464.88 : x
  2. Step 2: Convert to fraction form
    120,183/165,846.02 = 66,464.88/x
  3. Step 3: Cross multiply
    120,183x = 165,846.02 × 66,464.88
  4. Step 4: Simplify right side
    120,183x = 11,022,935,485.45
  5. Step 5: Solve for x
    x = 11,022,935,485.45/120,183
  6. Step 6: Final answer
    x = 91,717.93

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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.