Finding the Fourth Proportional to 99.48, 136.56 and 94.08
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Solution
The fourth proportional to 99.48, 136.56 and 94.08 is: 129.15
Step by Step Solution
- Step 1: Write the proportion equation
99.48 : 136.56 = 94.08 : x - Step 2: Convert to fraction form
99.48/136.56 = 94.08/x - Step 3: Cross multiply
99.48x = 136.56 × 94.08 - Step 4: Simplify right side
99.48x = 12,847.56 - Step 5: Solve for x
x = 12,847.56/99.48 - Step 6: Final answer
x = 129.15
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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.