Finding the Fourth Proportional to 136,725.74, 204,793.36 and 133,379.63
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Solution
The fourth proportional to 136,725.74, 204,793.36 and 133,379.63 is: 199,781.42
Step by Step Solution
- Step 1: Write the proportion equation
136,725.74 : 204,793.36 = 133,379.63 : x - Step 2: Convert to fraction form
136,725.74/204,793.36 = 133,379.63/x - Step 3: Cross multiply
136,725.74x = 204,793.36 × 133,379.63 - Step 4: Simplify right side
136,725.74x = 27,315,261,993.82 - Step 5: Solve for x
x = 27,315,261,993.82/136,725.74 - Step 6: Final answer
x = 199,781.42
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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.