Finding the Fourth Proportional to 134,916.12, 202,338.90 and 40,120.79
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Solution
The fourth proportional to 134,916.12, 202,338.90 and 40,120.79 is: 60,170.69
Step by Step Solution
- Step 1: Write the proportion equation
134,916.12 : 202,338.90 = 40,120.79 : x - Step 2: Convert to fraction form
134,916.12/202,338.90 = 40,120.79/x - Step 3: Cross multiply
134,916.12x = 202,338.90 × 40,120.79 - Step 4: Simplify right side
134,916.12x = 8,117,995,504.04 - Step 5: Solve for x
x = 8,117,995,504.04/134,916.12 - Step 6: Final answer
x = 60,170.69
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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.