Finding the Fourth Proportional to 125,295.56, 172,907.70 and 68,706.92
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Solution
The fourth proportional to 125,295.56, 172,907.70 and 68,706.92 is: 94,815.45
Step by Step Solution
- Step 1: Write the proportion equation
125,295.56 : 172,907.70 = 68,706.92 : x - Step 2: Convert to fraction form
125,295.56/172,907.70 = 68,706.92/x - Step 3: Cross multiply
125,295.56x = 172,907.70 × 68,706.92 - Step 4: Simplify right side
125,295.56x = 11,879,955,511.28 - Step 5: Solve for x
x = 11,879,955,511.28/125,295.56 - Step 6: Final answer
x = 94,815.45
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1.5x scale
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.