Finding the Third Proportional to 81,012.75 and 121,515.75
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Solution
The third proportional to 81,012.75 and 121,515.75 is: 182,268.56
Step by Step Solution
- Step 1: Write the proportion equation
81,012.75 : 121,515.75 = 121,515.75 : x - Step 2: Convert to fraction form
81,012.75/121,515.75 = 121,515.75/x - Step 3: Cross multiply
81,012.75x = 121,515.75 × 121,515.75 - Step 4: Simplify right side
81,012.75x = 14,766,077,498.06 - Step 5: Solve for x
x = 14,766,077,498.06/81,012.75 - Step 6: Final answer
x = 182,268.56
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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.