Finding the Fourth Proportional to 134,137.20, 201,205.80 and 40,647.60
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Solution
The fourth proportional to 134,137.20, 201,205.80 and 40,647.60 is: 60,971.40
Step by Step Solution
- Step 1: Write the proportion equation
134,137.20 : 201,205.80 = 40,647.60 : x - Step 2: Convert to fraction form
134,137.20/201,205.80 = 40,647.60/x - Step 3: Cross multiply
134,137.20x = 201,205.80 × 40,647.60 - Step 4: Simplify right side
134,137.20x = 8,178,532,876.08 - Step 5: Solve for x
x = 8,178,532,876.08/134,137.20 - Step 6: Final answer
x = 60,971.40
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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.