Home / 121,689.20-167,914.42-67,967.37

Finding the Fourth Proportional to 121,689.20, 167,914.42 and 67,967.37

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Solution

The fourth proportional to 121,689.20, 167,914.42 and 67,967.37 is: 93,785.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,689.20 : 167,914.42 = 67,967.37 : x
  2. Step 2: Convert to fraction form
    121,689.20/167,914.42 = 67,967.37/x
  3. Step 3: Cross multiply
    121,689.20x = 167,914.42 × 67,967.37
  4. Step 4: Simplify right side
    121,689.20x = 11,412,701,342.56
  5. Step 5: Solve for x
    x = 11,412,701,342.56/121,689.20
  6. Step 6: Final answer
    x = 93,785.65

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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.