Finding the Fourth Proportional to 121,176.44, 167,114.62 and 75,858.55
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Solution
The fourth proportional to 121,176.44, 167,114.62 and 75,858.55 is: 104,616.65
Step by Step Solution
- Step 1: Write the proportion equation
121,176.44 : 167,114.62 = 75,858.55 : x - Step 2: Convert to fraction form
121,176.44/167,114.62 = 75,858.55/x - Step 3: Cross multiply
121,176.44x = 167,114.62 × 75,858.55 - Step 4: Simplify right side
121,176.44x = 12,677,072,757.00 - Step 5: Solve for x
x = 12,677,072,757.00/121,176.44 - Step 6: Final answer
x = 104,616.65
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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.