Home / 213,169.86-319,679.73-70,976.52

Finding the Fourth Proportional to 213,169.86, 319,679.73 and 70,976.52

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Solution

The fourth proportional to 213,169.86, 319,679.73 and 70,976.52 is: 106,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,169.86 : 319,679.73 = 70,976.52 : x
  2. Step 2: Convert to fraction form
    213,169.86/319,679.73 = 70,976.52/x
  3. Step 3: Cross multiply
    213,169.86x = 319,679.73 × 70,976.52
  4. Step 4: Simplify right side
    213,169.86x = 22,689,754,749.94
  5. Step 5: Solve for x
    x = 22,689,754,749.94/213,169.86
  6. Step 6: Final answer
    x = 106,439.79

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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.