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Finding the Fourth Proportional to 156,550.86, 216,040.26 and 84,930.86

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Solution

The fourth proportional to 156,550.86, 216,040.26 and 84,930.86 is: 117,204.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,550.86 : 216,040.26 = 84,930.86 : x
  2. Step 2: Convert to fraction form
    156,550.86/216,040.26 = 84,930.86/x
  3. Step 3: Cross multiply
    156,550.86x = 216,040.26 × 84,930.86
  4. Step 4: Simplify right side
    156,550.86x = 18,348,485,616.52
  5. Step 5: Solve for x
    x = 18,348,485,616.52/156,550.86
  6. Step 6: Final answer
    x = 117,204.63

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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.