Finding the Third Proportional to 76,959.75 and 115,129.75
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Solution
The third proportional to 76,959.75 and 115,129.75 is: 172,231.06
Step by Step Solution
- Step 1: Write the proportion equation
76,959.75 : 115,129.75 = 115,129.75 : x - Step 2: Convert to fraction form
76,959.75/115,129.75 = 115,129.75/x - Step 3: Cross multiply
76,959.75x = 115,129.75 × 115,129.75 - Step 4: Simplify right side
76,959.75x = 13,254,859,335.06 - Step 5: Solve for x
x = 13,254,859,335.06/76,959.75 - Step 6: Final answer
x = 172,231.06
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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.