Finding the Fourth Proportional to 86,241.66, 118,998.69 and 79,265.62
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Solution
The fourth proportional to 86,241.66, 118,998.69 and 79,265.62 is: 109,372.95
Step by Step Solution
- Step 1: Write the proportion equation
86,241.66 : 118,998.69 = 79,265.62 : x - Step 2: Convert to fraction form
86,241.66/118,998.69 = 79,265.62/x - Step 3: Cross multiply
86,241.66x = 118,998.69 × 79,265.62 - Step 4: Simplify right side
86,241.66x = 9,432,504,793.54 - Step 5: Solve for x
x = 9,432,504,793.54/86,241.66 - Step 6: Final answer
x = 109,372.95
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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.