Finding the Third Proportional to 128,986.13 and 195,429.94
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Solution
The third proportional to 128,986.13 and 195,429.94 is: 296,100.53
Step by Step Solution
- Step 1: Write the proportion equation
128,986.13 : 195,429.94 = 195,429.94 : x - Step 2: Convert to fraction form
128,986.13/195,429.94 = 195,429.94/x - Step 3: Cross multiply
128,986.13x = 195,429.94 × 195,429.94 - Step 4: Simplify right side
128,986.13x = 38,192,860,471.25 - Step 5: Solve for x
x = 38,192,860,471.25/128,986.13 - Step 6: Final answer
x = 296,100.53
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Why These Related Problems?
These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.