Finding the Fourth Proportional to 112,283.41, 154,977.16 and 74,049.86
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Solution
The fourth proportional to 112,283.41, 154,977.16 and 74,049.86 is: 102,205.99
Step by Step Solution
- Step 1: Write the proportion equation
112,283.41 : 154,977.16 = 74,049.86 : x - Step 2: Convert to fraction form
112,283.41/154,977.16 = 74,049.86/x - Step 3: Cross multiply
112,283.41x = 154,977.16 × 74,049.86 - Step 4: Simplify right side
112,283.41x = 11,476,037,001.20 - Step 5: Solve for x
x = 11,476,037,001.20/112,283.41 - Step 6: Final answer
x = 102,205.99
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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.