Finding the Third Proportional to 90,478.13 and 129,840.19
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Solution
The third proportional to 90,478.13 and 129,840.19 is: 186,326.52
Step by Step Solution
- Step 1: Write the proportion equation
90,478.13 : 129,840.19 = 129,840.19 : x - Step 2: Convert to fraction form
90,478.13/129,840.19 = 129,840.19/x - Step 3: Cross multiply
90,478.13x = 129,840.19 × 129,840.19 - Step 4: Simplify right side
90,478.13x = 16,858,474,290.04 - Step 5: Solve for x
x = 16,858,474,290.04/90,478.13 - Step 6: Final answer
x = 186,326.52
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These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.