Finding the Fourth Proportional to 80,687.54, 121,252.75 and 76,102.02
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Solution
The fourth proportional to 80,687.54, 121,252.75 and 76,102.02 is: 114,361.88
Step by Step Solution
- Step 1: Write the proportion equation
80,687.54 : 121,252.75 = 76,102.02 : x - Step 2: Convert to fraction form
80,687.54/121,252.75 = 76,102.02/x - Step 3: Cross multiply
80,687.54x = 121,252.75 × 76,102.02 - Step 4: Simplify right side
80,687.54x = 9,227,578,844.79 - Step 5: Solve for x
x = 9,227,578,844.79/80,687.54 - Step 6: Final answer
x = 114,361.88
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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.