Finding the Fourth Proportional to 125,393.88, 173,043.58 and 71,680.08
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Solution
The fourth proportional to 125,393.88, 173,043.58 and 71,680.08 is: 98,918.53
Step by Step Solution
- Step 1: Write the proportion equation
125,393.88 : 173,043.58 = 71,680.08 : x - Step 2: Convert to fraction form
125,393.88/173,043.58 = 71,680.08/x - Step 3: Cross multiply
125,393.88x = 173,043.58 × 71,680.08 - Step 4: Simplify right side
125,393.88x = 12,403,777,657.89 - Step 5: Solve for x
x = 12,403,777,657.89/125,393.88 - Step 6: Final answer
x = 98,918.53
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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.