Finding the Fourth Proportional to 136,972.16, 205,553.62 and 48,232.81
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Solution
The fourth proportional to 136,972.16, 205,553.62 and 48,232.81 is: 72,382.80
Step by Step Solution
- Step 1: Write the proportion equation
136,972.16 : 205,553.62 = 48,232.81 : x - Step 2: Convert to fraction form
136,972.16/205,553.62 = 48,232.81/x - Step 3: Cross multiply
136,972.16x = 205,553.62 × 48,232.81 - Step 4: Simplify right side
136,972.16x = 9,914,428,744.20 - Step 5: Solve for x
x = 9,914,428,744.20/136,972.16 - Step 6: Final answer
x = 72,382.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.