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Finding the Fourth Proportional to 121,453.56, 167,608.44 and 67,740.84

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Solution

The fourth proportional to 121,453.56, 167,608.44 and 67,740.84 is: 93,483.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,453.56 : 167,608.44 = 67,740.84 : x
  2. Step 2: Convert to fraction form
    121,453.56/167,608.44 = 67,740.84/x
  3. Step 3: Cross multiply
    121,453.56x = 167,608.44 × 67,740.84
  4. Step 4: Simplify right side
    121,453.56x = 11,353,936,516.69
  5. Step 5: Solve for x
    x = 11,353,936,516.69/121,453.56
  6. Step 6: Final answer
    x = 93,483.77

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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.