Home / 120,214.99-165,896.67-65,767.60

Finding the Fourth Proportional to 120,214.99, 165,896.67 and 65,767.60

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Solution

The fourth proportional to 120,214.99, 165,896.67 and 65,767.60 is: 90,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,214.99 : 165,896.67 = 65,767.60 : x
  2. Step 2: Convert to fraction form
    120,214.99/165,896.67 = 65,767.60/x
  3. Step 3: Cross multiply
    120,214.99x = 165,896.67 × 65,767.60
  4. Step 4: Simplify right side
    120,214.99x = 10,910,625,833.89
  5. Step 5: Solve for x
    x = 10,910,625,833.89/120,214.99
  6. Step 6: Final answer
    x = 90,759.28

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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.