Finding the Fourth Proportional to 127,066.36, 175,278.28 and 79,236.68
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Solution
The fourth proportional to 127,066.36, 175,278.28 and 79,236.68 is: 109,300.91
Step by Step Solution
- Step 1: Write the proportion equation
127,066.36 : 175,278.28 = 79,236.68 : x - Step 2: Convert to fraction form
127,066.36/175,278.28 = 79,236.68/x - Step 3: Cross multiply
127,066.36x = 175,278.28 × 79,236.68 - Step 4: Simplify right side
127,066.36x = 13,888,468,983.31 - Step 5: Solve for x
x = 13,888,468,983.31/127,066.36 - Step 6: Final answer
x = 109,300.91
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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.