Finding the Fourth Proportional to 126,893.11, 175,343.44 and 120,743.99
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Solution
The fourth proportional to 126,893.11, 175,343.44 and 120,743.99 is: 166,846.46
Step by Step Solution
- Step 1: Write the proportion equation
126,893.11 : 175,343.44 = 120,743.99 : x - Step 2: Convert to fraction form
126,893.11/175,343.44 = 120,743.99/x - Step 3: Cross multiply
126,893.11x = 175,343.44 × 120,743.99 - Step 4: Simplify right side
126,893.11x = 21,171,666,565.93 - Step 5: Solve for x
x = 21,171,666,565.93/126,893.11 - Step 6: Final answer
x = 166,846.46
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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.