Finding the Fourth Proportional to 118.65, 177.99 and 110.94
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Solution
The fourth proportional to 118.65, 177.99 and 110.94 is: 166.42
Step by Step Solution
- Step 1: Write the proportion equation
118.65 : 177.99 = 110.94 : x - Step 2: Convert to fraction form
118.65/177.99 = 110.94/x - Step 3: Cross multiply
118.65x = 177.99 × 110.94 - Step 4: Simplify right side
118.65x = 19,746.21 - Step 5: Solve for x
x = 19,746.21/118.65 - Step 6: Final answer
x = 166.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.