Finding the Fourth Proportional to 99,195.82, 136,932.11 and 66,974.09
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Solution
The fourth proportional to 99,195.82, 136,932.11 and 66,974.09 is: 92,452.52
Step by Step Solution
- Step 1: Write the proportion equation
99,195.82 : 136,932.11 = 66,974.09 : x - Step 2: Convert to fraction form
99,195.82/136,932.11 = 66,974.09/x - Step 3: Cross multiply
99,195.82x = 136,932.11 × 66,974.09 - Step 4: Simplify right side
99,195.82x = 9,170,903,124.16 - Step 5: Solve for x
x = 9,170,903,124.16/99,195.82 - Step 6: Final answer
x = 92,452.52
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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.