Finding the Fourth Proportional to 100,170.93, 138,235.91 and 54,848.94
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Solution
The fourth proportional to 100,170.93, 138,235.91 and 54,848.94 is: 75,691.55
Step by Step Solution
- Step 1: Write the proportion equation
100,170.93 : 138,235.91 = 54,848.94 : x - Step 2: Convert to fraction form
100,170.93/138,235.91 = 54,848.94/x - Step 3: Cross multiply
100,170.93x = 138,235.91 × 54,848.94 - Step 4: Simplify right side
100,170.93x = 7,582,093,133.44 - Step 5: Solve for x
x = 7,582,093,133.44/100,170.93 - Step 6: Final answer
x = 75,691.55
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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.