Finding the Fourth Proportional to 119,361.84, 164,719.12 and 68,391.12
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Solution
The fourth proportional to 119,361.84, 164,719.12 and 68,391.12 is: 94,379.62
Step by Step Solution
- Step 1: Write the proportion equation
119,361.84 : 164,719.12 = 68,391.12 : x - Step 2: Convert to fraction form
119,361.84/164,719.12 = 68,391.12/x - Step 3: Cross multiply
119,361.84x = 164,719.12 × 68,391.12 - Step 4: Simplify right side
119,361.84x = 11,265,325,102.21 - Step 5: Solve for x
x = 11,265,325,102.21/119,361.84 - Step 6: Final answer
x = 94,379.62
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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.