Home / 196,745.09-271,523.07-120,278.66

Finding the Fourth Proportional to 196,745.09, 271,523.07 and 120,278.66

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Solution

The fourth proportional to 196,745.09, 271,523.07 and 120,278.66 is: 165,993.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,745.09 : 271,523.07 = 120,278.66 : x
  2. Step 2: Convert to fraction form
    196,745.09/271,523.07 = 120,278.66/x
  3. Step 3: Cross multiply
    196,745.09x = 271,523.07 × 120,278.66
  4. Step 4: Simplify right side
    196,745.09x = 32,658,429,661.07
  5. Step 5: Solve for x
    x = 32,658,429,661.07/196,745.09
  6. Step 6: Final answer
    x = 165,993.62

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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.