Finding the Fourth Proportional to 107,992.80, 161,794.80 and 92,440.80
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Solution
The fourth proportional to 107,992.80, 161,794.80 and 92,440.80 is: 138,494.80
Step by Step Solution
- Step 1: Write the proportion equation
107,992.80 : 161,794.80 = 92,440.80 : x - Step 2: Convert to fraction form
107,992.80/161,794.80 = 92,440.80/x - Step 3: Cross multiply
107,992.80x = 161,794.80 × 92,440.80 - Step 4: Simplify right side
107,992.80x = 14,956,440,747.84 - Step 5: Solve for x
x = 14,956,440,747.84/107,992.80 - Step 6: Final answer
x = 138,494.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.