Finding the Fourth Proportional to 159,840.92, 220,612.74 and 91,905.42
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Solution
The fourth proportional to 159,840.92, 220,612.74 and 91,905.42 is: 126,848.03
Step by Step Solution
- Step 1: Write the proportion equation
159,840.92 : 220,612.74 = 91,905.42 : x - Step 2: Convert to fraction form
159,840.92/220,612.74 = 91,905.42/x - Step 3: Cross multiply
159,840.92x = 220,612.74 × 91,905.42 - Step 4: Simplify right side
159,840.92x = 20,275,506,527.05 - Step 5: Solve for x
x = 20,275,506,527.05/159,840.92 - Step 6: Final answer
x = 126,848.03
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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.