Finding the Fourth Proportional to 127,340.74, 190,945.19 and 57,159.62
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Solution
The fourth proportional to 127,340.74, 190,945.19 and 57,159.62 is: 85,709.84
Step by Step Solution
- Step 1: Write the proportion equation
127,340.74 : 190,945.19 = 57,159.62 : x - Step 2: Convert to fraction form
127,340.74/190,945.19 = 57,159.62/x - Step 3: Cross multiply
127,340.74x = 190,945.19 × 57,159.62 - Step 4: Simplify right side
127,340.74x = 10,914,354,501.23 - Step 5: Solve for x
x = 10,914,354,501.23/127,340.74 - Step 6: Final answer
x = 85,709.84
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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.