Finding the Third Proportional to 81,129.75 and 121,019.63
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Solution
The third proportional to 81,129.75 and 121,019.63 is: 180,522.55
Step by Step Solution
- Step 1: Write the proportion equation
81,129.75 : 121,019.63 = 121,019.63 : x - Step 2: Convert to fraction form
81,129.75/121,019.63 = 121,019.63/x - Step 3: Cross multiply
81,129.75x = 121,019.63 × 121,019.63 - Step 4: Simplify right side
81,129.75x = 14,645,749,635.14 - Step 5: Solve for x
x = 14,645,749,635.14/81,129.75 - Step 6: Final answer
x = 180,522.55
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.