Finding the Third Proportional to 83 and 139.25
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Solution
The third proportional to 83 and 139.25 is: 233.62
Step by Step Solution
- Step 1: Write the proportion equation
83 : 139.25 = 139.25 : x - Step 2: Convert to fraction form
83/139.25 = 139.25/x - Step 3: Cross multiply
83x = 139.25 × 139.25 - Step 4: Simplify right side
83x = 19,390.56 - Step 5: Solve for x
x = 19,390.56/83 - Step 6: Final answer
x = 233.62
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These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.