Home / 120,567.58-166,367.96-66,105.42

Finding the Fourth Proportional to 120,567.58, 166,367.96 and 66,105.42

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Solution

The fourth proportional to 120,567.58, 166,367.96 and 66,105.42 is: 91,217.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,567.58 : 166,367.96 = 66,105.42 : x
  2. Step 2: Convert to fraction form
    120,567.58/166,367.96 = 66,105.42/x
  3. Step 3: Cross multiply
    120,567.58x = 166,367.96 × 66,105.42
  4. Step 4: Simplify right side
    120,567.58x = 10,997,823,203.77
  5. Step 5: Solve for x
    x = 10,997,823,203.77/120,567.58
  6. Step 6: Final answer
    x = 91,217.09

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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.