Home / 122,091.09-168,481.78-67,641.04

Finding the Fourth Proportional to 122,091.09, 168,481.78 and 67,641.04

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Solution

The fourth proportional to 122,091.09, 168,481.78 and 67,641.04 is: 93,342.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,091.09 : 168,481.78 = 67,641.04 : x
  2. Step 2: Convert to fraction form
    122,091.09/168,481.78 = 67,641.04/x
  3. Step 3: Cross multiply
    122,091.09x = 168,481.78 × 67,641.04
  4. Step 4: Simplify right side
    122,091.09x = 11,396,282,820.25
  5. Step 5: Solve for x
    x = 11,396,282,820.25/122,091.09
  6. Step 6: Final answer
    x = 93,342.46

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1.5x scale

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.