Home / 259,741.75-389,651.58-91,232.38

Finding the Fourth Proportional to 259,741.75, 389,651.58 and 91,232.38

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Solution

The fourth proportional to 259,741.75, 389,651.58 and 91,232.38 is: 136,862.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,741.75 : 389,651.58 = 91,232.38 : x
  2. Step 2: Convert to fraction form
    259,741.75/389,651.58 = 91,232.38/x
  3. Step 3: Cross multiply
    259,741.75x = 389,651.58 × 91,232.38
  4. Step 4: Simplify right side
    259,741.75x = 35,548,839,065.90
  5. Step 5: Solve for x
    x = 35,548,839,065.90/259,741.75
  6. Step 6: Final answer
    x = 136,862.25

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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.