Finding the Fourth Proportional to 157.99, 236.95 and 80.92
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Solution
The fourth proportional to 157.99, 236.95 and 80.92 is: 121.36
Step by Step Solution
- Step 1: Write the proportion equation
157.99 : 236.95 = 80.92 : x - Step 2: Convert to fraction form
157.99/236.95 = 80.92/x - Step 3: Cross multiply
157.99x = 236.95 × 80.92 - Step 4: Simplify right side
157.99x = 19,173.99 - Step 5: Solve for x
x = 19,173.99/157.99 - Step 6: Final answer
x = 121.36
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.