Finding the Fourth Proportional to 136,761.64, 205,158.84 and 129,296.68
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Solution
The fourth proportional to 136,761.64, 205,158.84 and 129,296.68 is: 193,960.51
Step by Step Solution
- Step 1: Write the proportion equation
136,761.64 : 205,158.84 = 129,296.68 : x - Step 2: Convert to fraction form
136,761.64/205,158.84 = 129,296.68/x - Step 3: Cross multiply
136,761.64x = 205,158.84 × 129,296.68 - Step 4: Simplify right side
136,761.64x = 26,526,356,884.65 - Step 5: Solve for x
x = 26,526,356,884.65/136,761.64 - Step 6: Final answer
x = 193,960.51
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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.