Finding the Fourth Proportional to 129,159.09, 193,733.24 and 44,938.31
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Solution
The fourth proportional to 129,159.09, 193,733.24 and 44,938.31 is: 67,405.58
Step by Step Solution
- Step 1: Write the proportion equation
129,159.09 : 193,733.24 = 44,938.31 : x - Step 2: Convert to fraction form
129,159.09/193,733.24 = 44,938.31/x - Step 3: Cross multiply
129,159.09x = 193,733.24 × 44,938.31 - Step 4: Simplify right side
129,159.09x = 8,706,043,203.07 - Step 5: Solve for x
x = 8,706,043,203.07/129,159.09 - Step 6: Final answer
x = 67,405.58
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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.