Finding the Fourth Proportional to 121,408.80, 167,824.08 and 121,408.80
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Solution
The fourth proportional to 121,408.80, 167,824.08 and 121,408.80 is: 167,824.08
Step by Step Solution
- Step 1: Write the proportion equation
121,408.80 : 167,824.08 = 121,408.80 : x - Step 2: Convert to fraction form
121,408.80/167,824.08 = 121,408.80/x - Step 3: Cross multiply
121,408.80x = 167,824.08 × 121,408.80 - Step 4: Simplify right side
121,408.80x = 20,375,320,163.90 - Step 5: Solve for x
x = 20,375,320,163.90/121,408.80 - Step 6: Final answer
x = 167,824.08
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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.