Finding the Fourth Proportional to 127,943.06, 176,593.08 and 87,174.62
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Solution
The fourth proportional to 127,943.06, 176,593.08 and 87,174.62 is: 120,322.55
Step by Step Solution
- Step 1: Write the proportion equation
127,943.06 : 176,593.08 = 87,174.62 : x - Step 2: Convert to fraction form
127,943.06/176,593.08 = 87,174.62/x - Step 3: Cross multiply
127,943.06x = 176,593.08 × 87,174.62 - Step 4: Simplify right side
127,943.06x = 15,394,434,643.63 - Step 5: Solve for x
x = 15,394,434,643.63/127,943.06 - Step 6: Final answer
x = 120,322.55
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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.