Finding the Fourth Proportional to 131,970.24, 182,121.21 and 75,382.02
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Solution
The fourth proportional to 131,970.24, 182,121.21 and 75,382.02 is: 104,028.49
Step by Step Solution
- Step 1: Write the proportion equation
131,970.24 : 182,121.21 = 75,382.02 : x - Step 2: Convert to fraction form
131,970.24/182,121.21 = 75,382.02/x - Step 3: Cross multiply
131,970.24x = 182,121.21 × 75,382.02 - Step 4: Simplify right side
131,970.24x = 13,728,664,694.64 - Step 5: Solve for x
x = 13,728,664,694.64/131,970.24 - Step 6: Final answer
x = 104,028.49
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.