Finding the Fourth Proportional to 169,661.31, 234,242.15 and 105,198.99
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Solution
The fourth proportional to 169,661.31, 234,242.15 and 105,198.99 is: 145,242.53
Step by Step Solution
- Step 1: Write the proportion equation
169,661.31 : 234,242.15 = 105,198.99 : x - Step 2: Convert to fraction form
169,661.31/234,242.15 = 105,198.99/x - Step 3: Cross multiply
169,661.31x = 234,242.15 × 105,198.99 - Step 4: Simplify right side
169,661.31x = 24,642,037,069.43 - Step 5: Solve for x
x = 24,642,037,069.43/169,661.31 - Step 6: Final answer
x = 145,242.53
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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.