Finding the Fourth Proportional to 129,498.18, 194,246.97 and 40,759.44
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Solution
The fourth proportional to 129,498.18, 194,246.97 and 40,759.44 is: 61,139.07
Step by Step Solution
- Step 1: Write the proportion equation
129,498.18 : 194,246.97 = 40,759.44 : x - Step 2: Convert to fraction form
129,498.18/194,246.97 = 40,759.44/x - Step 3: Cross multiply
129,498.18x = 194,246.97 × 40,759.44 - Step 4: Simplify right side
129,498.18x = 7,917,397,718.90 - Step 5: Solve for x
x = 7,917,397,718.90/129,498.18 - Step 6: Final answer
x = 61,139.07
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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.