Home / 121,738.82-182,608.32-55,166.54

Finding the Fourth Proportional to 121,738.82, 182,608.32 and 55,166.54

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Solution

The fourth proportional to 121,738.82, 182,608.32 and 55,166.54 is: 82,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,738.82 : 182,608.32 = 55,166.54 : x
  2. Step 2: Convert to fraction form
    121,738.82/182,608.32 = 55,166.54/x
  3. Step 3: Cross multiply
    121,738.82x = 182,608.32 × 55,166.54
  4. Step 4: Simplify right side
    121,738.82x = 10,073,869,189.61
  5. Step 5: Solve for x
    x = 10,073,869,189.61/121,738.82
  6. Step 6: Final answer
    x = 82,749.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.