Home / 119,907.91-179,879.63-39,919.75

Finding the Fourth Proportional to 119,907.91, 179,879.63 and 39,919.75

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Solution

The fourth proportional to 119,907.91, 179,879.63 and 39,919.75 is: 59,885.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,907.91 : 179,879.63 = 39,919.75 : x
  2. Step 2: Convert to fraction form
    119,907.91/179,879.63 = 39,919.75/x
  3. Step 3: Cross multiply
    119,907.91x = 179,879.63 × 39,919.75
  4. Step 4: Simplify right side
    119,907.91x = 7,180,749,859.69
  5. Step 5: Solve for x
    x = 7,180,749,859.69/119,907.91
  6. Step 6: Final answer
    x = 59,885.54

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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.