Finding the Fourth Proportional to 122,361.74, 183,503.72 and 83,170.70
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Solution
The fourth proportional to 122,361.74, 183,503.72 and 83,170.70 is: 124,729.61
Step by Step Solution
- Step 1: Write the proportion equation
122,361.74 : 183,503.72 = 83,170.70 : x - Step 2: Convert to fraction form
122,361.74/183,503.72 = 83,170.70/x - Step 3: Cross multiply
122,361.74x = 183,503.72 × 83,170.70 - Step 4: Simplify right side
122,361.74x = 15,262,131,511.63 - Step 5: Solve for x
x = 15,262,131,511.63/122,361.74 - Step 6: Final answer
x = 124,729.61
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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.