Finding the Fourth Proportional to 125,821.19, 173,576.01 and 74,804.99
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Solution
The fourth proportional to 125,821.19, 173,576.01 and 74,804.99 is: 103,196.86
Step by Step Solution
- Step 1: Write the proportion equation
125,821.19 : 173,576.01 = 74,804.99 : x - Step 2: Convert to fraction form
125,821.19/173,576.01 = 74,804.99/x - Step 3: Cross multiply
125,821.19x = 173,576.01 × 74,804.99 - Step 4: Simplify right side
125,821.19x = 12,984,350,824.41 - Step 5: Solve for x
x = 12,984,350,824.41/125,821.19 - Step 6: Final answer
x = 103,196.86
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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.