Finding the Third Proportional to 78,815.53 and 122,244.19
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Solution
The third proportional to 78,815.53 and 122,244.19 is: 189,602.75
Step by Step Solution
- Step 1: Write the proportion equation
78,815.53 : 122,244.19 = 122,244.19 : x - Step 2: Convert to fraction form
78,815.53/122,244.19 = 122,244.19/x - Step 3: Cross multiply
78,815.53x = 122,244.19 × 122,244.19 - Step 4: Simplify right side
78,815.53x = 14,943,641,377.54 - Step 5: Solve for x
x = 14,943,641,377.54/78,815.53 - Step 6: Final answer
x = 189,602.75
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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.