Finding the Fourth Proportional to 134,485.80, 201,728.70 and 128,034.60
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Solution
The fourth proportional to 134,485.80, 201,728.70 and 128,034.60 is: 192,051.90
Step by Step Solution
- Step 1: Write the proportion equation
134,485.80 : 201,728.70 = 128,034.60 : x - Step 2: Convert to fraction form
134,485.80/201,728.70 = 128,034.60/x - Step 3: Cross multiply
134,485.80x = 201,728.70 × 128,034.60 - Step 4: Simplify right side
134,485.80x = 25,828,253,413.02 - Step 5: Solve for x
x = 25,828,253,413.02/134,485.80 - Step 6: Final answer
x = 192,051.90
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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.