Finding the Fourth Proportional to 126.64, 174.93 and 114.99
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Solution
The fourth proportional to 126.64, 174.93 and 114.99 is: 158.84
Step by Step Solution
- Step 1: Write the proportion equation
126.64 : 174.93 = 114.99 : x - Step 2: Convert to fraction form
126.64/174.93 = 114.99/x - Step 3: Cross multiply
126.64x = 174.93 × 114.99 - Step 4: Simplify right side
126.64x = 20,115.20 - Step 5: Solve for x
x = 20,115.20/126.64 - Step 6: Final answer
x = 158.84
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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.