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Finding the Fourth Proportional to 121,670.38, 167,903.33 and 67,956.14

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Solution

The fourth proportional to 121,670.38, 167,903.33 and 67,956.14 is: 93,778.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,670.38 : 167,903.33 = 67,956.14 : x
  2. Step 2: Convert to fraction form
    121,670.38/167,903.33 = 67,956.14/x
  3. Step 3: Cross multiply
    121,670.38x = 167,903.33 × 67,956.14
  4. Step 4: Simplify right side
    121,670.38x = 11,410,062,789.59
  5. Step 5: Solve for x
    x = 11,410,062,789.59/121,670.38
  6. Step 6: Final answer
    x = 93,778.48

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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.