Finding the Fourth Proportional to 118.35, 177.21 and 63.99
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Solution
The fourth proportional to 118.35, 177.21 and 63.99 is: 95.81
Step by Step Solution
- Step 1: Write the proportion equation
118.35 : 177.21 = 63.99 : x - Step 2: Convert to fraction form
118.35/177.21 = 63.99/x - Step 3: Cross multiply
118.35x = 177.21 × 63.99 - Step 4: Simplify right side
118.35x = 11,339.67 - Step 5: Solve for x
x = 11,339.67/118.35 - Step 6: Final answer
x = 95.81
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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.