Finding the Fourth Proportional to 136,431.99, 204,775.97 and 83,943.99
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Solution
The fourth proportional to 136,431.99, 204,775.97 and 83,943.99 is: 125,994.73
Step by Step Solution
- Step 1: Write the proportion equation
136,431.99 : 204,775.97 = 83,943.99 : x - Step 2: Convert to fraction form
136,431.99/204,775.97 = 83,943.99/x - Step 3: Cross multiply
136,431.99x = 204,775.97 × 83,943.99 - Step 4: Simplify right side
136,431.99x = 17,189,711,977.92 - Step 5: Solve for x
x = 17,189,711,977.92/136,431.99 - Step 6: Final answer
x = 125,994.73
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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.