Home / 121,940.24-168,284.06-68,222.04

Finding the Fourth Proportional to 121,940.24, 168,284.06 and 68,222.04

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Solution

The fourth proportional to 121,940.24, 168,284.06 and 68,222.04 is: 94,150.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,940.24 : 168,284.06 = 68,222.04 : x
  2. Step 2: Convert to fraction form
    121,940.24/168,284.06 = 68,222.04/x
  3. Step 3: Cross multiply
    121,940.24x = 168,284.06 × 68,222.04
  4. Step 4: Simplify right side
    121,940.24x = 11,480,681,872.68
  5. Step 5: Solve for x
    x = 11,480,681,872.68/121,940.24
  6. Step 6: Final answer
    x = 94,150.07

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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.