Finding the Fourth Proportional to 135,414.55, 186,872.25 and 74,160.46
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Solution
The fourth proportional to 135,414.55, 186,872.25 and 74,160.46 is: 102,341.53
Step by Step Solution
- Step 1: Write the proportion equation
135,414.55 : 186,872.25 = 74,160.46 : x - Step 2: Convert to fraction form
135,414.55/186,872.25 = 74,160.46/x - Step 3: Cross multiply
135,414.55x = 186,872.25 × 74,160.46 - Step 4: Simplify right side
135,414.55x = 13,858,532,021.24 - Step 5: Solve for x
x = 13,858,532,021.24/135,414.55 - Step 6: Final answer
x = 102,341.53
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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.