Finding the Fourth Proportional to 147,824.40, 203,974.20 and 84,163.44
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Solution
The fourth proportional to 147,824.40, 203,974.20 and 84,163.44 is: 116,132.18
Step by Step Solution
- Step 1: Write the proportion equation
147,824.40 : 203,974.20 = 84,163.44 : x - Step 2: Convert to fraction form
147,824.40/203,974.20 = 84,163.44/x - Step 3: Cross multiply
147,824.40x = 203,974.20 × 84,163.44 - Step 4: Simplify right side
147,824.40x = 17,167,170,343.25 - Step 5: Solve for x
x = 17,167,170,343.25/147,824.40 - Step 6: Final answer
x = 116,132.18
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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.