Home / 107,765.55-161,626.25-67,766.19

Finding the Fourth Proportional to 107,765.55, 161,626.25 and 67,766.19

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Solution

The fourth proportional to 107,765.55, 161,626.25 and 67,766.19 is: 101,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,765.55 : 161,626.25 = 67,766.19 : x
  2. Step 2: Convert to fraction form
    107,765.55/161,626.25 = 67,766.19/x
  3. Step 3: Cross multiply
    107,765.55x = 161,626.25 × 67,766.19
  4. Step 4: Simplify right side
    107,765.55x = 10,952,794,827.66
  5. Step 5: Solve for x
    x = 10,952,794,827.66/107,765.55
  6. Step 6: Final answer
    x = 101,635.40

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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.