Finding the Fourth Proportional to 157.15, 216.84 and 94.99
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Solution
The fourth proportional to 157.15, 216.84 and 94.99 is: 131.07
Step by Step Solution
- Step 1: Write the proportion equation
157.15 : 216.84 = 94.99 : x - Step 2: Convert to fraction form
157.15/216.84 = 94.99/x - Step 3: Cross multiply
157.15x = 216.84 × 94.99 - Step 4: Simplify right side
157.15x = 20,597.63 - Step 5: Solve for x
x = 20,597.63/157.15 - Step 6: Final answer
x = 131.07
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.