Finding the Fourth Proportional to 116.10, 174.06 and 91.98
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Solution
The fourth proportional to 116.10, 174.06 and 91.98 is: 137.90
Step by Step Solution
- Step 1: Write the proportion equation
116.10 : 174.06 = 91.98 : x - Step 2: Convert to fraction form
116.10/174.06 = 91.98/x - Step 3: Cross multiply
116.10x = 174.06 × 91.98 - Step 4: Simplify right side
116.10x = 16,010.04 - Step 5: Solve for x
x = 16,010.04/116.10 - Step 6: Final answer
x = 137.90
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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.