Finding the Fourth Proportional to 125,846.10, 188,769.15 and 121,007.70
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Solution
The fourth proportional to 125,846.10, 188,769.15 and 121,007.70 is: 181,511.55
Step by Step Solution
- Step 1: Write the proportion equation
125,846.10 : 188,769.15 = 121,007.70 : x - Step 2: Convert to fraction form
125,846.10/188,769.15 = 121,007.70/x - Step 3: Cross multiply
125,846.10x = 188,769.15 × 121,007.70 - Step 4: Simplify right side
125,846.10x = 22,842,520,672.46 - Step 5: Solve for x
x = 22,842,520,672.46/125,846.10 - Step 6: Final answer
x = 181,511.55
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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.