Finding the Third Proportional to 91,431.75 and 121,354.88
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Solution
The third proportional to 91,431.75 and 121,354.88 is: 161,071.02
Step by Step Solution
- Step 1: Write the proportion equation
91,431.75 : 121,354.88 = 121,354.88 : x - Step 2: Convert to fraction form
91,431.75/121,354.88 = 121,354.88/x - Step 3: Cross multiply
91,431.75x = 121,354.88 × 121,354.88 - Step 4: Simplify right side
91,431.75x = 14,727,005,686.27 - Step 5: Solve for x
x = 14,727,005,686.27/91,431.75 - Step 6: Final answer
x = 161,071.02
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These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.