Finding the Third Proportional to 77,814 and 121,938.75
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Solution
The third proportional to 77,814 and 121,938.75 is: 191,084.62
Step by Step Solution
- Step 1: Write the proportion equation
77,814 : 121,938.75 = 121,938.75 : x - Step 2: Convert to fraction form
77,814/121,938.75 = 121,938.75/x - Step 3: Cross multiply
77,814x = 121,938.75 × 121,938.75 - Step 4: Simplify right side
77,814x = 14,869,058,751.56 - Step 5: Solve for x
x = 14,869,058,751.56/77,814 - Step 6: Final answer
x = 191,084.62
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These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.