Finding the Fourth Proportional to 125,913.28, 173,708.26 and 74,915.82
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Solution
The fourth proportional to 125,913.28, 173,708.26 and 74,915.82 is: 103,352.85
Step by Step Solution
- Step 1: Write the proportion equation
125,913.28 : 173,708.26 = 74,915.82 : x - Step 2: Convert to fraction form
125,913.28/173,708.26 = 74,915.82/x - Step 3: Cross multiply
125,913.28x = 173,708.26 × 74,915.82 - Step 4: Simplify right side
125,913.28x = 13,013,496,738.67 - Step 5: Solve for x
x = 13,013,496,738.67/125,913.28 - Step 6: Final answer
x = 103,352.85
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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.