Finding the Fourth Proportional to 134,629.20, 201,943.80 and 45,874.80
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Solution
The fourth proportional to 134,629.20, 201,943.80 and 45,874.80 is: 68,812.20
Step by Step Solution
- Step 1: Write the proportion equation
134,629.20 : 201,943.80 = 45,874.80 : x - Step 2: Convert to fraction form
134,629.20/201,943.80 = 45,874.80/x - Step 3: Cross multiply
134,629.20x = 201,943.80 × 45,874.80 - Step 4: Simplify right side
134,629.20x = 9,264,131,436.24 - Step 5: Solve for x
x = 9,264,131,436.24/134,629.20 - Step 6: Final answer
x = 68,812.20
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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.