Home / 121,383.93-167,512.68-67,667.58

Finding the Fourth Proportional to 121,383.93, 167,512.68 and 67,667.58

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Solution

The fourth proportional to 121,383.93, 167,512.68 and 67,667.58 is: 93,382.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,383.93 : 167,512.68 = 67,667.58 : x
  2. Step 2: Convert to fraction form
    121,383.93/167,512.68 = 67,667.58/x
  3. Step 3: Cross multiply
    121,383.93x = 167,512.68 × 67,667.58
  4. Step 4: Simplify right side
    121,383.93x = 11,335,177,674.91
  5. Step 5: Solve for x
    x = 11,335,177,674.91/121,383.93
  6. Step 6: Final answer
    x = 93,382.85

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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.