Home / 120,658.08-166,508.64-66,942.96

Finding the Fourth Proportional to 120,658.08, 166,508.64 and 66,942.96

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Solution

The fourth proportional to 120,658.08, 166,508.64 and 66,942.96 is: 92,381.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,658.08 : 166,508.64 = 66,942.96 : x
  2. Step 2: Convert to fraction form
    120,658.08/166,508.64 = 66,942.96/x
  3. Step 3: Cross multiply
    120,658.08x = 166,508.64 × 66,942.96
  4. Step 4: Simplify right side
    120,658.08x = 11,146,581,227.17
  5. Step 5: Solve for x
    x = 11,146,581,227.17/120,658.08
  6. Step 6: Final answer
    x = 92,381.56

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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.