Home / 120,334.87-166,064.48-66,618.37

Finding the Fourth Proportional to 120,334.87, 166,064.48 and 66,618.37

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Solution

The fourth proportional to 120,334.87, 166,064.48 and 66,618.37 is: 91,934.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,334.87 : 166,064.48 = 66,618.37 : x
  2. Step 2: Convert to fraction form
    120,334.87/166,064.48 = 66,618.37/x
  3. Step 3: Cross multiply
    120,334.87x = 166,064.48 × 66,618.37
  4. Step 4: Simplify right side
    120,334.87x = 11,062,944,972.50
  5. Step 5: Solve for x
    x = 11,062,944,972.50/120,334.87
  6. Step 6: Final answer
    x = 91,934.66

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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.