Finding the Fourth Proportional to 99.37, 137.01 and 82.99
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Solution
The fourth proportional to 99.37, 137.01 and 82.99 is: 114.43
Step by Step Solution
- Step 1: Write the proportion equation
99.37 : 137.01 = 82.99 : x - Step 2: Convert to fraction form
99.37/137.01 = 82.99/x - Step 3: Cross multiply
99.37x = 137.01 × 82.99 - Step 4: Simplify right side
99.37x = 11,370.46 - Step 5: Solve for x
x = 11,370.46/99.37 - Step 6: Final answer
x = 114.43
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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.