Finding the Fourth Proportional to 116,771.62, 161,198.49 and 76,487.08
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Solution
The fourth proportional to 116,771.62, 161,198.49 and 76,487.08 is: 105,587.31
Step by Step Solution
- Step 1: Write the proportion equation
116,771.62 : 161,198.49 = 76,487.08 : x - Step 2: Convert to fraction form
116,771.62/161,198.49 = 76,487.08/x - Step 3: Cross multiply
116,771.62x = 161,198.49 × 76,487.08 - Step 4: Simplify right side
116,771.62x = 12,329,601,800.51 - Step 5: Solve for x
x = 12,329,601,800.51/116,771.62 - Step 6: Final answer
x = 105,587.31
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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.