Finding the Fourth Proportional to 125,874.39, 173,710.91 and 68,515.80
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Solution
The fourth proportional to 125,874.39, 173,710.91 and 68,515.80 is: 94,554.12
Step by Step Solution
- Step 1: Write the proportion equation
125,874.39 : 173,710.91 = 68,515.80 : x - Step 2: Convert to fraction form
125,874.39/173,710.91 = 68,515.80/x - Step 3: Cross multiply
125,874.39x = 173,710.91 × 68,515.80 - Step 4: Simplify right side
125,874.39x = 11,901,941,967.38 - Step 5: Solve for x
x = 11,901,941,967.38/125,874.39 - Step 6: Final answer
x = 94,554.12
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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.