Finding the Fourth Proportional to 136,387.40, 188,163.68 and 136,177.14
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Solution
The fourth proportional to 136,387.40, 188,163.68 and 136,177.14 is: 187,873.60
Step by Step Solution
- Step 1: Write the proportion equation
136,387.40 : 188,163.68 = 136,177.14 : x - Step 2: Convert to fraction form
136,387.40/188,163.68 = 136,177.14/x - Step 3: Cross multiply
136,387.40x = 188,163.68 × 136,177.14 - Step 4: Simplify right side
136,387.40x = 25,623,591,794.28 - Step 5: Solve for x
x = 25,623,591,794.28/136,387.40 - Step 6: Final answer
x = 187,873.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.