Finding the Fourth Proportional to 118.13, 163.04 and 68.99
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Solution
The fourth proportional to 118.13, 163.04 and 68.99 is: 95.21
Step by Step Solution
- Step 1: Write the proportion equation
118.13 : 163.04 = 68.99 : x - Step 2: Convert to fraction form
118.13/163.04 = 68.99/x - Step 3: Cross multiply
118.13x = 163.04 × 68.99 - Step 4: Simplify right side
118.13x = 11,246.97 - Step 5: Solve for x
x = 11,246.97/118.13 - Step 6: Final answer
x = 95.21
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.