Finding the Fourth Proportional to 125,013.98, 187,437.60 and 68,880.44
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Solution
The fourth proportional to 125,013.98, 187,437.60 and 68,880.44 is: 103,274.72
Step by Step Solution
- Step 1: Write the proportion equation
125,013.98 : 187,437.60 = 68,880.44 : x - Step 2: Convert to fraction form
125,013.98/187,437.60 = 68,880.44/x - Step 3: Cross multiply
125,013.98x = 187,437.60 × 68,880.44 - Step 4: Simplify right side
125,013.98x = 12,910,784,360.54 - Step 5: Solve for x
x = 12,910,784,360.54/125,013.98 - Step 6: Final answer
x = 103,274.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.