Home / 121,569.72-167,759.38-67,858.19

Finding the Fourth Proportional to 121,569.72, 167,759.38 and 67,858.19

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Solution

The fourth proportional to 121,569.72, 167,759.38 and 67,858.19 is: 93,640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,569.72 : 167,759.38 = 67,858.19 : x
  2. Step 2: Convert to fraction form
    121,569.72/167,759.38 = 67,858.19/x
  3. Step 3: Cross multiply
    121,569.72x = 167,759.38 × 67,858.19
  4. Step 4: Simplify right side
    121,569.72x = 11,383,847,882.32
  5. Step 5: Solve for x
    x = 11,383,847,882.32/121,569.72
  6. Step 6: Final answer
    x = 93,640.49

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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.