Finding the Third Proportional to 79,992.75 and 121,609.13
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Solution
The third proportional to 79,992.75 and 121,609.13 is: 184,876.50
Step by Step Solution
- Step 1: Write the proportion equation
79,992.75 : 121,609.13 = 121,609.13 : x - Step 2: Convert to fraction form
79,992.75/121,609.13 = 121,609.13/x - Step 3: Cross multiply
79,992.75x = 121,609.13 × 121,609.13 - Step 4: Simplify right side
79,992.75x = 14,788,779,283.27 - Step 5: Solve for x
x = 14,788,779,283.27/79,992.75 - Step 6: Final answer
x = 184,876.50
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Why These Related Problems?
These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.