Home / 121,849.70-168,194.93-83,735.46

Finding the Fourth Proportional to 121,849.70, 168,194.93 and 83,735.46

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Solution

The fourth proportional to 121,849.70, 168,194.93 and 83,735.46 is: 115,584.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,849.70 : 168,194.93 = 83,735.46 : x
  2. Step 2: Convert to fraction form
    121,849.70/168,194.93 = 83,735.46/x
  3. Step 3: Cross multiply
    121,849.70x = 168,194.93 × 83,735.46
  4. Step 4: Simplify right side
    121,849.70x = 14,083,879,414.54
  5. Step 5: Solve for x
    x = 14,083,879,414.54/121,849.70
  6. Step 6: Final answer
    x = 115,584.04

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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.