Home / 121,786.86-182,845.95-68,516.33

Finding the Fourth Proportional to 121,786.86, 182,845.95 and 68,516.33

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Solution

The fourth proportional to 121,786.86, 182,845.95 and 68,516.33 is: 102,867.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,786.86 : 182,845.95 = 68,516.33 : x
  2. Step 2: Convert to fraction form
    121,786.86/182,845.95 = 68,516.33/x
  3. Step 3: Cross multiply
    121,786.86x = 182,845.95 × 68,516.33
  4. Step 4: Simplify right side
    121,786.86x = 12,527,932,663.60
  5. Step 5: Solve for x
    x = 12,527,932,663.60/121,786.86
  6. Step 6: Final answer
    x = 102,867.69

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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.