Home / 120,491.96-166,274.37-66,777.89

Finding the Fourth Proportional to 120,491.96, 166,274.37 and 66,777.89

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Solution

The fourth proportional to 120,491.96, 166,274.37 and 66,777.89 is: 92,150.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,491.96 : 166,274.37 = 66,777.89 : x
  2. Step 2: Convert to fraction form
    120,491.96/166,274.37 = 66,777.89/x
  3. Step 3: Cross multiply
    120,491.96x = 166,274.37 × 66,777.89
  4. Step 4: Simplify right side
    120,491.96x = 11,103,450,758.31
  5. Step 5: Solve for x
    x = 11,103,450,758.31/120,491.96
  6. Step 6: Final answer
    x = 92,150.97

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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.