Finding the Fourth Proportional to 129,977.44, 194,966.19 and 46,871.44
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Solution
The fourth proportional to 129,977.44, 194,966.19 and 46,871.44 is: 70,307.17
Step by Step Solution
- Step 1: Write the proportion equation
129,977.44 : 194,966.19 = 46,871.44 : x - Step 2: Convert to fraction form
129,977.44/194,966.19 = 46,871.44/x - Step 3: Cross multiply
129,977.44x = 194,966.19 × 46,871.44 - Step 4: Simplify right side
129,977.44x = 9,138,345,589.20 - Step 5: Solve for x
x = 9,138,345,589.20/129,977.44 - Step 6: Final answer
x = 70,307.17
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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.