Finding the Fourth Proportional to 144,338.99, 216,704.82 and 81,203.54
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Solution
The fourth proportional to 144,338.99, 216,704.82 and 81,203.54 is: 121,915.77
Step by Step Solution
- Step 1: Write the proportion equation
144,338.99 : 216,704.82 = 81,203.54 : x - Step 2: Convert to fraction form
144,338.99/216,704.82 = 81,203.54/x - Step 3: Cross multiply
144,338.99x = 216,704.82 × 81,203.54 - Step 4: Simplify right side
144,338.99x = 17,597,198,519.06 - Step 5: Solve for x
x = 17,597,198,519.06/144,338.99 - Step 6: Final answer
x = 121,915.77
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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.