Finding the Third Proportional to 84,750.75 and 128,220.75
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Solution
The third proportional to 84,750.75 and 128,220.75 is: 193,987.20
Step by Step Solution
- Step 1: Write the proportion equation
84,750.75 : 128,220.75 = 128,220.75 : x - Step 2: Convert to fraction form
84,750.75/128,220.75 = 128,220.75/x - Step 3: Cross multiply
84,750.75x = 128,220.75 × 128,220.75 - Step 4: Simplify right side
84,750.75x = 16,440,560,730.56 - Step 5: Solve for x
x = 16,440,560,730.56/84,750.75 - Step 6: Final answer
x = 193,987.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.