Finding the Fourth Proportional to 126,893.80, 190,268.70 and 48,010.60
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Solution
The fourth proportional to 126,893.80, 190,268.70 and 48,010.60 is: 71,988.66
Step by Step Solution
- Step 1: Write the proportion equation
126,893.80 : 190,268.70 = 48,010.60 : x - Step 2: Convert to fraction form
126,893.80/190,268.70 = 48,010.60/x - Step 3: Cross multiply
126,893.80x = 190,268.70 × 48,010.60 - Step 4: Simplify right side
126,893.80x = 9,134,914,448.22 - Step 5: Solve for x
x = 9,134,914,448.22/126,893.80 - Step 6: Final answer
x = 71,988.66
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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.