Finding the Fourth Proportional to 134,571.12, 185,716.44 and 74,955.12
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Solution
The fourth proportional to 134,571.12, 185,716.44 and 74,955.12 is: 103,442.69
Step by Step Solution
- Step 1: Write the proportion equation
134,571.12 : 185,716.44 = 74,955.12 : x - Step 2: Convert to fraction form
134,571.12/185,716.44 = 74,955.12/x - Step 3: Cross multiply
134,571.12x = 185,716.44 × 74,955.12 - Step 4: Simplify right side
134,571.12x = 13,920,398,046.17 - Step 5: Solve for x
x = 13,920,398,046.17/134,571.12 - Step 6: Final answer
x = 103,442.69
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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.