Finding the Fourth Proportional to 119,716.58, 179,644.84 and 66,453.41
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Solution
The fourth proportional to 119,716.58, 179,644.84 and 66,453.41 is: 99,718.95
Step by Step Solution
- Step 1: Write the proportion equation
119,716.58 : 179,644.84 = 66,453.41 : x - Step 2: Convert to fraction form
119,716.58/179,644.84 = 66,453.41/x - Step 3: Cross multiply
119,716.58x = 179,644.84 × 66,453.41 - Step 4: Simplify right side
119,716.58x = 11,938,012,489.88 - Step 5: Solve for x
x = 11,938,012,489.88/119,716.58 - Step 6: Final answer
x = 99,718.95
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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.