Home / 196,289.78-294,512.43-71,718.26

Finding the Fourth Proportional to 196,289.78, 294,512.43 and 71,718.26

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Solution

The fourth proportional to 196,289.78, 294,512.43 and 71,718.26 is: 107,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,289.78 : 294,512.43 = 71,718.26 : x
  2. Step 2: Convert to fraction form
    196,289.78/294,512.43 = 71,718.26/x
  3. Step 3: Cross multiply
    196,289.78x = 294,512.43 × 71,718.26
  4. Step 4: Simplify right side
    196,289.78x = 21,121,919,027.97
  5. Step 5: Solve for x
    x = 21,121,919,027.97/196,289.78
  6. Step 6: Final answer
    x = 107,605.80

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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.