Home / 121,161.37-167,208.23-67,449.86

Finding the Fourth Proportional to 121,161.37, 167,208.23 and 67,449.86

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Solution

The fourth proportional to 121,161.37, 167,208.23 and 67,449.86 is: 93,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,161.37 : 167,208.23 = 67,449.86 : x
  2. Step 2: Convert to fraction form
    121,161.37/167,208.23 = 67,449.86/x
  3. Step 3: Cross multiply
    121,161.37x = 167,208.23 × 67,449.86
  4. Step 4: Simplify right side
    121,161.37x = 11,278,171,704.35
  5. Step 5: Solve for x
    x = 11,278,171,704.35/121,161.37
  6. Step 6: Final answer
    x = 93,083.89

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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.