Finding the Fourth Proportional to 140,713.26, 194,182.36 and 77,051.08
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Solution
The fourth proportional to 140,713.26, 194,182.36 and 77,051.08 is: 106,329.43
Step by Step Solution
- Step 1: Write the proportion equation
140,713.26 : 194,182.36 = 77,051.08 : x - Step 2: Convert to fraction form
140,713.26/194,182.36 = 77,051.08/x - Step 3: Cross multiply
140,713.26x = 194,182.36 × 77,051.08 - Step 4: Simplify right side
140,713.26x = 14,961,960,554.95 - Step 5: Solve for x
x = 14,961,960,554.95/140,713.26 - Step 6: Final answer
x = 106,329.43
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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.