Finding the Fourth Proportional to 107.74, 161.66 and 58.99
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Solution
The fourth proportional to 107.74, 161.66 and 58.99 is: 88.51
Step by Step Solution
- Step 1: Write the proportion equation
107.74 : 161.66 = 58.99 : x - Step 2: Convert to fraction form
107.74/161.66 = 58.99/x - Step 3: Cross multiply
107.74x = 161.66 × 58.99 - Step 4: Simplify right side
107.74x = 9,536.07 - Step 5: Solve for x
x = 9,536.07/107.74 - Step 6: Final answer
x = 88.51
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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.