Finding the Fourth Proportional to 107.74, 161.52 and 67.08
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Solution
The fourth proportional to 107.74, 161.52 and 67.08 is: 100.56
Step by Step Solution
- Step 1: Write the proportion equation
107.74 : 161.52 = 67.08 : x - Step 2: Convert to fraction form
107.74/161.52 = 67.08/x - Step 3: Cross multiply
107.74x = 161.52 × 67.08 - Step 4: Simplify right side
107.74x = 10,834.76 - Step 5: Solve for x
x = 10,834.76/107.74 - Step 6: Final answer
x = 100.56
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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.