Finding the Fourth Proportional to 136,751.70, 205,201.18 and 66,631.02
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Solution
The fourth proportional to 136,751.70, 205,201.18 and 66,631.02 is: 99,982.41
Step by Step Solution
- Step 1: Write the proportion equation
136,751.70 : 205,201.18 = 66,631.02 : x - Step 2: Convert to fraction form
136,751.70/205,201.18 = 66,631.02/x - Step 3: Cross multiply
136,751.70x = 205,201.18 × 66,631.02 - Step 4: Simplify right side
136,751.70x = 13,672,763,928.60 - Step 5: Solve for x
x = 13,672,763,928.60/136,751.70 - Step 6: Final answer
x = 99,982.41
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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.