Finding the Fourth Proportional to 115.11, 159 and 93.36
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Solution
The fourth proportional to 115.11, 159 and 93.36 is: 128.96
Step by Step Solution
- Step 1: Write the proportion equation
115.11 : 159 = 93.36 : x - Step 2: Convert to fraction form
115.11/159 = 93.36/x - Step 3: Cross multiply
115.11x = 159 × 93.36 - Step 4: Simplify right side
115.11x = 14,844.24 - Step 5: Solve for x
x = 14,844.24/115.11 - Step 6: Final answer
x = 128.96
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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.