Finding the Fourth Proportional to 185,755.95, 256,343.13 and 100,872.99
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Solution
The fourth proportional to 185,755.95, 256,343.13 and 100,872.99 is: 139,204.68
Step by Step Solution
- Step 1: Write the proportion equation
185,755.95 : 256,343.13 = 100,872.99 : x - Step 2: Convert to fraction form
185,755.95/256,343.13 = 100,872.99/x - Step 3: Cross multiply
185,755.95x = 256,343.13 × 100,872.99 - Step 4: Simplify right side
185,755.95x = 25,858,097,989.06 - Step 5: Solve for x
x = 25,858,097,989.06/185,755.95 - Step 6: Final answer
x = 139,204.68
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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.