Home / 121,205.80-167,268.93-67,487.41

Finding the Fourth Proportional to 121,205.80, 167,268.93 and 67,487.41

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Solution

The fourth proportional to 121,205.80, 167,268.93 and 67,487.41 is: 93,135.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,205.80 : 167,268.93 = 67,487.41 : x
  2. Step 2: Convert to fraction form
    121,205.80/167,268.93 = 67,487.41/x
  3. Step 3: Cross multiply
    121,205.80x = 167,268.93 × 67,487.41
  4. Step 4: Simplify right side
    121,205.80x = 11,288,546,022.83
  5. Step 5: Solve for x
    x = 11,288,546,022.83/121,205.80
  6. Step 6: Final answer
    x = 93,135.37

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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.