Finding the Fourth Proportional to 157.19, 235.94 and 126.68
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Solution
The fourth proportional to 157.19, 235.94 and 126.68 is: 190.14
Step by Step Solution
- Step 1: Write the proportion equation
157.19 : 235.94 = 126.68 : x - Step 2: Convert to fraction form
157.19/235.94 = 126.68/x - Step 3: Cross multiply
157.19x = 235.94 × 126.68 - Step 4: Simplify right side
157.19x = 29,887.07 - Step 5: Solve for x
x = 29,887.07/157.19 - Step 6: Final answer
x = 190.14
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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.