Finding the Fourth Proportional to 107,928.08, 161,792.76 and 72,879.92
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Solution
The fourth proportional to 107,928.08, 161,792.76 and 72,879.92 is: 109,252.79
Step by Step Solution
- Step 1: Write the proportion equation
107,928.08 : 161,792.76 = 72,879.92 : x - Step 2: Convert to fraction form
107,928.08/161,792.76 = 72,879.92/x - Step 3: Cross multiply
107,928.08x = 161,792.76 × 72,879.92 - Step 4: Simplify right side
107,928.08x = 11,791,443,405.38 - Step 5: Solve for x
x = 11,791,443,405.38/107,928.08 - Step 6: Final answer
x = 109,252.79
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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.