Finding the Fourth Proportional to 134,738.40, 202,107.60 and 128,177.40
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Solution
The fourth proportional to 134,738.40, 202,107.60 and 128,177.40 is: 192,266.10
Step by Step Solution
- Step 1: Write the proportion equation
134,738.40 : 202,107.60 = 128,177.40 : x - Step 2: Convert to fraction form
134,738.40/202,107.60 = 128,177.40/x - Step 3: Cross multiply
134,738.40x = 202,107.60 × 128,177.40 - Step 4: Simplify right side
134,738.40x = 25,905,626,688.24 - Step 5: Solve for x
x = 25,905,626,688.24/134,738.40 - Step 6: Final answer
x = 192,266.10
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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.