Home / 121,694.40-167,936.96-67,984.80

Finding the Fourth Proportional to 121,694.40, 167,936.96 and 67,984.80

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Solution

The fourth proportional to 121,694.40, 167,936.96 and 67,984.80 is: 93,818.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,694.40 : 167,936.96 = 67,984.80 : x
  2. Step 2: Convert to fraction form
    121,694.40/167,936.96 = 67,984.80/x
  3. Step 3: Cross multiply
    121,694.40x = 167,936.96 × 67,984.80
  4. Step 4: Simplify right side
    121,694.40x = 11,417,160,638.21
  5. Step 5: Solve for x
    x = 11,417,160,638.21/121,694.40
  6. Step 6: Final answer
    x = 93,818.29

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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.