Finding the Fourth Proportional to 135,028.40, 202,542.60 and 79,732.40
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Solution
The fourth proportional to 135,028.40, 202,542.60 and 79,732.40 is: 119,598.60
Step by Step Solution
- Step 1: Write the proportion equation
135,028.40 : 202,542.60 = 79,732.40 : x - Step 2: Convert to fraction form
135,028.40/202,542.60 = 79,732.40/x - Step 3: Cross multiply
135,028.40x = 202,542.60 × 79,732.40 - Step 4: Simplify right side
135,028.40x = 16,149,207,600.24 - Step 5: Solve for x
x = 16,149,207,600.24/135,028.40 - Step 6: Final answer
x = 119,598.60
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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.