Finding the Fourth Proportional to 134,640.80, 201,961.20 and 113,904.80
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Solution
The fourth proportional to 134,640.80, 201,961.20 and 113,904.80 is: 170,857.20
Step by Step Solution
- Step 1: Write the proportion equation
134,640.80 : 201,961.20 = 113,904.80 : x - Step 2: Convert to fraction form
134,640.80/201,961.20 = 113,904.80/x - Step 3: Cross multiply
134,640.80x = 201,961.20 × 113,904.80 - Step 4: Simplify right side
134,640.80x = 23,004,350,093.76 - Step 5: Solve for x
x = 23,004,350,093.76/134,640.80 - Step 6: Final answer
x = 170,857.20
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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.