Home / 120,131.24-165,772.37-66,416.90

Finding the Fourth Proportional to 120,131.24, 165,772.37 and 66,416.90

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Solution

The fourth proportional to 120,131.24, 165,772.37 and 66,416.90 is: 91,650.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,131.24 : 165,772.37 = 66,416.90 : x
  2. Step 2: Convert to fraction form
    120,131.24/165,772.37 = 66,416.90/x
  3. Step 3: Cross multiply
    120,131.24x = 165,772.37 × 66,416.90
  4. Step 4: Simplify right side
    120,131.24x = 11,010,086,258.23
  5. Step 5: Solve for x
    x = 11,010,086,258.23/120,131.24
  6. Step 6: Final answer
    x = 91,650.49

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1.5x scale

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.