Home / 121,161.86-167,208.92-67,450.36

Finding the Fourth Proportional to 121,161.86, 167,208.92 and 67,450.36

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Solution

The fourth proportional to 121,161.86, 167,208.92 and 67,450.36 is: 93,084.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,161.86 : 167,208.92 = 67,450.36 : x
  2. Step 2: Convert to fraction form
    121,161.86/167,208.92 = 67,450.36/x
  3. Step 3: Cross multiply
    121,161.86x = 167,208.92 × 67,450.36
  4. Step 4: Simplify right side
    121,161.86x = 11,278,301,849.21
  5. Step 5: Solve for x
    x = 11,278,301,849.21/121,161.86
  6. Step 6: Final answer
    x = 93,084.59

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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.