Finding the Fourth Proportional to 126.08, 173.99 and 84.57
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Solution
The fourth proportional to 126.08, 173.99 and 84.57 is: 116.70
Step by Step Solution
- Step 1: Write the proportion equation
126.08 : 173.99 = 84.57 : x - Step 2: Convert to fraction form
126.08/173.99 = 84.57/x - Step 3: Cross multiply
126.08x = 173.99 × 84.57 - Step 4: Simplify right side
126.08x = 14,713.46 - Step 5: Solve for x
x = 14,713.46/126.08 - Step 6: Final answer
x = 116.70
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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.