Finding the Fourth Proportional to 136,168.58, 204,258.36 and 47,431.06
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Solution
The fourth proportional to 136,168.58, 204,258.36 and 47,431.06 is: 71,148.50
Step by Step Solution
- Step 1: Write the proportion equation
136,168.58 : 204,258.36 = 47,431.06 : x - Step 2: Convert to fraction form
136,168.58/204,258.36 = 47,431.06/x - Step 3: Cross multiply
136,168.58x = 204,258.36 × 47,431.06 - Step 4: Simplify right side
136,168.58x = 9,688,190,528.66 - Step 5: Solve for x
x = 9,688,190,528.66/136,168.58 - Step 6: Final answer
x = 71,148.50
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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.