Home / 120,759.21-181,190.07-64,584.75

Finding the Fourth Proportional to 120,759.21, 181,190.07 and 64,584.75

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Solution

The fourth proportional to 120,759.21, 181,190.07 and 64,584.75 is: 96,904.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,759.21 : 181,190.07 = 64,584.75 : x
  2. Step 2: Convert to fraction form
    120,759.21/181,190.07 = 64,584.75/x
  3. Step 3: Cross multiply
    120,759.21x = 181,190.07 × 64,584.75
  4. Step 4: Simplify right side
    120,759.21x = 11,702,115,373.43
  5. Step 5: Solve for x
    x = 11,702,115,373.43/120,759.21
  6. Step 6: Final answer
    x = 96,904.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.