Finding the Fourth Proportional to 96.36, 132.94 and 74.58
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Solution
The fourth proportional to 96.36, 132.94 and 74.58 is: 102.89
Step by Step Solution
- Step 1: Write the proportion equation
96.36 : 132.94 = 74.58 : x - Step 2: Convert to fraction form
96.36/132.94 = 74.58/x - Step 3: Cross multiply
96.36x = 132.94 × 74.58 - Step 4: Simplify right side
96.36x = 9,914.67 - Step 5: Solve for x
x = 9,914.67/96.36 - Step 6: Final answer
x = 102.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.