Finding the Fourth Proportional to 135,037.80, 202,556.70 and 82,506.60
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Solution
The fourth proportional to 135,037.80, 202,556.70 and 82,506.60 is: 123,759.90
Step by Step Solution
- Step 1: Write the proportion equation
135,037.80 : 202,556.70 = 82,506.60 : x - Step 2: Convert to fraction form
135,037.80/202,556.70 = 82,506.60/x - Step 3: Cross multiply
135,037.80x = 202,556.70 × 82,506.60 - Step 4: Simplify right side
135,037.80x = 16,712,264,624.22 - Step 5: Solve for x
x = 16,712,264,624.22/135,037.80 - Step 6: Final answer
x = 123,759.90
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1.5x scale
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.