Home / 117,268.20-161,830.35-68,860.80

Finding the Fourth Proportional to 117,268.20, 161,830.35 and 68,860.80

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Solution

The fourth proportional to 117,268.20, 161,830.35 and 68,860.80 is: 95,028.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,268.20 : 161,830.35 = 68,860.80 : x
  2. Step 2: Convert to fraction form
    117,268.20/161,830.35 = 68,860.80/x
  3. Step 3: Cross multiply
    117,268.20x = 161,830.35 × 68,860.80
  4. Step 4: Simplify right side
    117,268.20x = 11,143,767,365.28
  5. Step 5: Solve for x
    x = 11,143,767,365.28/117,268.20
  6. Step 6: Final answer
    x = 95,028.04

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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.