Finding the Fourth Proportional to 127,431.92, 190,193.14 and 125,329.70
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Solution
The fourth proportional to 127,431.92, 190,193.14 and 125,329.70 is: 187,055.56
Step by Step Solution
- Step 1: Write the proportion equation
127,431.92 : 190,193.14 = 125,329.70 : x - Step 2: Convert to fraction form
127,431.92/190,193.14 = 125,329.70/x - Step 3: Cross multiply
127,431.92x = 190,193.14 × 125,329.70 - Step 4: Simplify right side
127,431.92x = 23,836,849,178.26 - Step 5: Solve for x
x = 23,836,849,178.26/127,431.92 - Step 6: Final answer
x = 187,055.56
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.