Finding the Fourth Proportional to 121,708.08, 182,295.09 and 100,408.55
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Solution
The fourth proportional to 121,708.08, 182,295.09 and 100,408.55 is: 150,392.52
Step by Step Solution
- Step 1: Write the proportion equation
121,708.08 : 182,295.09 = 100,408.55 : x - Step 2: Convert to fraction form
121,708.08/182,295.09 = 100,408.55/x - Step 3: Cross multiply
121,708.08x = 182,295.09 × 100,408.55 - Step 4: Simplify right side
121,708.08x = 18,303,984,747.54 - Step 5: Solve for x
x = 18,303,984,747.54/121,708.08 - Step 6: Final answer
x = 150,392.52
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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.