Finding the Third Proportional to 129,030.75 and 189,736.88
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Solution
The third proportional to 129,030.75 and 189,736.88 is: 279,003.89
Step by Step Solution
- Step 1: Write the proportion equation
129,030.75 : 189,736.88 = 189,736.88 : x - Step 2: Convert to fraction form
129,030.75/189,736.88 = 189,736.88/x - Step 3: Cross multiply
129,030.75x = 189,736.88 × 189,736.88 - Step 4: Simplify right side
129,030.75x = 36,000,081,734.77 - Step 5: Solve for x
x = 36,000,081,734.77/129,030.75 - Step 6: Final answer
x = 279,003.89
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Why These Related Problems?
These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.