Finding the Fourth Proportional to 140,970.84, 194,551.02 and 79,729.92
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Solution
The fourth proportional to 140,970.84, 194,551.02 and 79,729.92 is: 110,033.66
Step by Step Solution
- Step 1: Write the proportion equation
140,970.84 : 194,551.02 = 79,729.92 : x - Step 2: Convert to fraction form
140,970.84/194,551.02 = 79,729.92/x - Step 3: Cross multiply
140,970.84x = 194,551.02 × 79,729.92 - Step 4: Simplify right side
140,970.84x = 15,511,537,260.52 - Step 5: Solve for x
x = 15,511,537,260.52/140,970.84 - Step 6: Final answer
x = 110,033.66
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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.