Finding the Fourth Proportional to 112,283.54, 154,977.34 and 74,049.99
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Solution
The fourth proportional to 112,283.54, 154,977.34 and 74,049.99 is: 102,206.17
Step by Step Solution
- Step 1: Write the proportion equation
112,283.54 : 154,977.34 = 74,049.99 : x - Step 2: Convert to fraction form
112,283.54/154,977.34 = 74,049.99/x - Step 3: Cross multiply
112,283.54x = 154,977.34 × 74,049.99 - Step 4: Simplify right side
112,283.54x = 11,476,070,292.10 - Step 5: Solve for x
x = 11,476,070,292.10/112,283.54 - Step 6: Final answer
x = 102,206.17
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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.