Finding the Fourth Proportional to 140,929.65, 211,112.81 and 84,738.99
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Solution
The fourth proportional to 140,929.65, 211,112.81 and 84,738.99 is: 126,939.12
Step by Step Solution
- Step 1: Write the proportion equation
140,929.65 : 211,112.81 = 84,738.99 : x - Step 2: Convert to fraction form
140,929.65/211,112.81 = 84,738.99/x - Step 3: Cross multiply
140,929.65x = 211,112.81 × 84,738.99 - Step 4: Simplify right side
140,929.65x = 17,889,486,295.46 - Step 5: Solve for x
x = 17,889,486,295.46/140,929.65 - Step 6: Final answer
x = 126,939.12
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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.