Finding the Fourth Proportional to 135,393.26, 186,845.60 and 74,142.03
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Solution
The fourth proportional to 135,393.26, 186,845.60 and 74,142.03 is: 102,317.60
Step by Step Solution
- Step 1: Write the proportion equation
135,393.26 : 186,845.60 = 74,142.03 : x - Step 2: Convert to fraction form
135,393.26/186,845.60 = 74,142.03/x - Step 3: Cross multiply
135,393.26x = 186,845.60 × 74,142.03 - Step 4: Simplify right side
135,393.26x = 13,853,113,122.99 - Step 5: Solve for x
x = 13,853,113,122.99/135,393.26 - Step 6: Final answer
x = 102,317.60
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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.