Finding the Third Proportional to 99 and 130.50
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Solution
The third proportional to 99 and 130.50 is: 172.02
Step by Step Solution
- Step 1: Write the proportion equation
99 : 130.50 = 130.50 : x - Step 2: Convert to fraction form
99/130.50 = 130.50/x - Step 3: Cross multiply
99x = 130.50 × 130.50 - Step 4: Simplify right side
99x = 17,030.25 - Step 5: Solve for x
x = 17,030.25/99 - Step 6: Final answer
x = 172.02
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Why These Related Problems?
These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.