Finding the Fourth Proportional to 125,907.40, 188,423.70 and 115,409.80
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Solution
The fourth proportional to 125,907.40, 188,423.70 and 115,409.80 is: 172,713.77
Step by Step Solution
- Step 1: Write the proportion equation
125,907.40 : 188,423.70 = 115,409.80 : x - Step 2: Convert to fraction form
125,907.40/188,423.70 = 115,409.80/x - Step 3: Cross multiply
125,907.40x = 188,423.70 × 115,409.80 - Step 4: Simplify right side
125,907.40x = 21,745,941,532.26 - Step 5: Solve for x
x = 21,745,941,532.26/125,907.40 - Step 6: Final answer
x = 172,713.77
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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.