Finding the Fourth Proportional to 107,615.16, 161,420.88 and 48,409.02
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Solution
The fourth proportional to 107,615.16, 161,420.88 and 48,409.02 is: 72,612.69
Step by Step Solution
- Step 1: Write the proportion equation
107,615.16 : 161,420.88 = 48,409.02 : x - Step 2: Convert to fraction form
107,615.16/161,420.88 = 48,409.02/x - Step 3: Cross multiply
107,615.16x = 161,420.88 × 48,409.02 - Step 4: Simplify right side
107,615.16x = 7,814,226,608.34 - Step 5: Solve for x
x = 7,814,226,608.34/107,615.16 - Step 6: Final answer
x = 72,612.69
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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.