Finding the Fourth Proportional to 181,203.40, 250,064.09 and 100,638.48
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Solution
The fourth proportional to 181,203.40, 250,064.09 and 100,638.48 is: 138,882.99
Step by Step Solution
- Step 1: Write the proportion equation
181,203.40 : 250,064.09 = 100,638.48 : x - Step 2: Convert to fraction form
181,203.40/250,064.09 = 100,638.48/x - Step 3: Cross multiply
181,203.40x = 250,064.09 × 100,638.48 - Step 4: Simplify right side
181,203.40x = 25,166,069,920.18 - Step 5: Solve for x
x = 25,166,069,920.18/181,203.40 - Step 6: Final answer
x = 138,882.99
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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.