Home / 156,365.48-215,778.57-84,743.97

Finding the Fourth Proportional to 156,365.48, 215,778.57 and 84,743.97

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Solution

The fourth proportional to 156,365.48, 215,778.57 and 84,743.97 is: 116,943.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,365.48 : 215,778.57 = 84,743.97 : x
  2. Step 2: Convert to fraction form
    156,365.48/215,778.57 = 84,743.97/x
  3. Step 3: Cross multiply
    156,365.48x = 215,778.57 × 84,743.97
  4. Step 4: Simplify right side
    156,365.48x = 18,285,932,662.72
  5. Step 5: Solve for x
    x = 18,285,932,662.72/156,365.48
  6. Step 6: Final answer
    x = 116,943.54

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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.