Finding the Fourth Proportional to 127,757.94, 176,305.95 and 74,074.14
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Solution
The fourth proportional to 127,757.94, 176,305.95 and 74,074.14 is: 102,222.31
Step by Step Solution
- Step 1: Write the proportion equation
127,757.94 : 176,305.95 = 74,074.14 : x - Step 2: Convert to fraction form
127,757.94/176,305.95 = 74,074.14/x - Step 3: Cross multiply
127,757.94x = 176,305.95 × 74,074.14 - Step 4: Simplify right side
127,757.94x = 13,059,711,623.13 - Step 5: Solve for x
x = 13,059,711,623.13/127,757.94 - Step 6: Final answer
x = 102,222.31
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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.