Home / 189,992.58-262,175.30-105,107.82

Finding the Fourth Proportional to 189,992.58, 262,175.30 and 105,107.82

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Solution

The fourth proportional to 189,992.58, 262,175.30 and 105,107.82 is: 145,040.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,992.58 : 262,175.30 = 105,107.82 : x
  2. Step 2: Convert to fraction form
    189,992.58/262,175.30 = 105,107.82/x
  3. Step 3: Cross multiply
    189,992.58x = 262,175.30 × 105,107.82
  4. Step 4: Simplify right side
    189,992.58x = 27,556,674,240.85
  5. Step 5: Solve for x
    x = 27,556,674,240.85/189,992.58
  6. Step 6: Final answer
    x = 145,040.79

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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.