Finding the Fourth Proportional to 127,579.71, 176,029.96 and 107,239.09
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Solution
The fourth proportional to 127,579.71, 176,029.96 and 107,239.09 is: 147,964.69
Step by Step Solution
- Step 1: Write the proportion equation
127,579.71 : 176,029.96 = 107,239.09 : x - Step 2: Convert to fraction form
127,579.71/176,029.96 = 107,239.09/x - Step 3: Cross multiply
127,579.71x = 176,029.96 × 107,239.09 - Step 4: Simplify right side
127,579.71x = 18,877,292,546.09 - Step 5: Solve for x
x = 18,877,292,546.09/127,579.71 - Step 6: Final answer
x = 147,964.69
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1.5x scale
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.