Finding the Fourth Proportional to 116,770.62, 161,197.11 and 76,486.08
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Solution
The fourth proportional to 116,770.62, 161,197.11 and 76,486.08 is: 105,585.93
Step by Step Solution
- Step 1: Write the proportion equation
116,770.62 : 161,197.11 = 76,486.08 : x - Step 2: Convert to fraction form
116,770.62/161,197.11 = 76,486.08/x - Step 3: Cross multiply
116,770.62x = 161,197.11 × 76,486.08 - Step 4: Simplify right side
116,770.62x = 12,329,335,051.23 - Step 5: Solve for x
x = 12,329,335,051.23/116,770.62 - Step 6: Final answer
x = 105,585.93
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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.