Finding the Fourth Proportional to 134,431.80, 201,647.70 and 119,916.60
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Solution
The fourth proportional to 134,431.80, 201,647.70 and 119,916.60 is: 179,874.90
Step by Step Solution
- Step 1: Write the proportion equation
134,431.80 : 201,647.70 = 119,916.60 : x - Step 2: Convert to fraction form
134,431.80/201,647.70 = 119,916.60/x - Step 3: Cross multiply
134,431.80x = 201,647.70 × 119,916.60 - Step 4: Simplify right side
134,431.80x = 24,180,906,581.82 - Step 5: Solve for x
x = 24,180,906,581.82/134,431.80 - Step 6: Final answer
x = 179,874.90
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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.