Home / 121,628.12-167,845.23-67,914.05

Finding the Fourth Proportional to 121,628.12, 167,845.23 and 67,914.05

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Solution

The fourth proportional to 121,628.12, 167,845.23 and 67,914.05 is: 93,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,628.12 : 167,845.23 = 67,914.05 : x
  2. Step 2: Convert to fraction form
    121,628.12/167,845.23 = 67,914.05/x
  3. Step 3: Cross multiply
    121,628.12x = 167,845.23 × 67,914.05
  4. Step 4: Simplify right side
    121,628.12x = 11,399,048,503.26
  5. Step 5: Solve for x
    x = 11,399,048,503.26/121,628.12
  6. Step 6: Final answer
    x = 93,720.51

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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.