Finding the Third Proportional to 77,790 and 120,140
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Solution
The third proportional to 77,790 and 120,140 is: 185,545.95
Step by Step Solution
- Step 1: Write the proportion equation
77,790 : 120,140 = 120,140 : x - Step 2: Convert to fraction form
77,790/120,140 = 120,140/x - Step 3: Cross multiply
77,790x = 120,140 × 120,140 - Step 4: Simplify right side
77,790x = 14,433,619,600 - Step 5: Solve for x
x = 14,433,619,600/77,790 - Step 6: Final answer
x = 185,545.95
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These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.