Finding the Fourth Proportional to 135,106.09, 186,375.87 and 84,110.72
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Solution
The fourth proportional to 135,106.09, 186,375.87 and 84,110.72 is: 116,028.88
Step by Step Solution
- Step 1: Write the proportion equation
135,106.09 : 186,375.87 = 84,110.72 : x - Step 2: Convert to fraction form
135,106.09/186,375.87 = 84,110.72/x - Step 3: Cross multiply
135,106.09x = 186,375.87 × 84,110.72 - Step 4: Simplify right side
135,106.09x = 15,676,207,684.45 - Step 5: Solve for x
x = 15,676,207,684.45/135,106.09 - Step 6: Final answer
x = 116,028.88
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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.