Finding the Fourth Proportional to 125,143.73, 172,702.65 and 68,555.09
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Solution
The fourth proportional to 125,143.73, 172,702.65 and 68,555.09 is: 94,608.38
Step by Step Solution
- Step 1: Write the proportion equation
125,143.73 : 172,702.65 = 68,555.09 : x - Step 2: Convert to fraction form
125,143.73/172,702.65 = 68,555.09/x - Step 3: Cross multiply
125,143.73x = 172,702.65 × 68,555.09 - Step 4: Simplify right side
125,143.73x = 11,839,645,713.99 - Step 5: Solve for x
x = 11,839,645,713.99/125,143.73 - Step 6: Final answer
x = 94,608.38
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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.