Finding the Fourth Proportional to 141,755.19, 212,558.96 and 66,855.21
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Solution
The fourth proportional to 141,755.19, 212,558.96 and 66,855.21 is: 100,247.99
Step by Step Solution
- Step 1: Write the proportion equation
141,755.19 : 212,558.96 = 66,855.21 : x - Step 2: Convert to fraction form
141,755.19/212,558.96 = 66,855.21/x - Step 3: Cross multiply
141,755.19x = 212,558.96 × 66,855.21 - Step 4: Simplify right side
141,755.19x = 14,210,673,573.91 - Step 5: Solve for x
x = 14,210,673,573.91/141,755.19 - Step 6: Final answer
x = 100,247.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.