Finding the Fourth Proportional to 117.06, 161.91 and 110.99
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Solution
The fourth proportional to 117.06, 161.91 and 110.99 is: 153.51
Step by Step Solution
- Step 1: Write the proportion equation
117.06 : 161.91 = 110.99 : x - Step 2: Convert to fraction form
117.06/161.91 = 110.99/x - Step 3: Cross multiply
117.06x = 161.91 × 110.99 - Step 4: Simplify right side
117.06x = 17,969.58 - Step 5: Solve for x
x = 17,969.58/117.06 - Step 6: Final answer
x = 153.51
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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.