Finding the Fourth Proportional to 139,183.26, 209,817.87 and 129,914.14
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Solution
The fourth proportional to 139,183.26, 209,817.87 and 129,914.14 is: 195,844.72
Step by Step Solution
- Step 1: Write the proportion equation
139,183.26 : 209,817.87 = 129,914.14 : x - Step 2: Convert to fraction form
139,183.26/209,817.87 = 129,914.14/x - Step 3: Cross multiply
139,183.26x = 209,817.87 × 129,914.14 - Step 4: Simplify right side
139,183.26x = 27,258,307,294.64 - Step 5: Solve for x
x = 27,258,307,294.64/139,183.26 - Step 6: Final answer
x = 195,844.72
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.