Finding the Fourth Proportional to 120,615.16, 166,506.08 and 80,395.96
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Solution
The fourth proportional to 120,615.16, 166,506.08 and 80,395.96 is: 110,984.52
Step by Step Solution
- Step 1: Write the proportion equation
120,615.16 : 166,506.08 = 80,395.96 : x - Step 2: Convert to fraction form
120,615.16/166,506.08 = 80,395.96/x - Step 3: Cross multiply
120,615.16x = 166,506.08 × 80,395.96 - Step 4: Simplify right side
120,615.16x = 13,386,416,147.44 - Step 5: Solve for x
x = 13,386,416,147.44/120,615.16 - Step 6: Final answer
x = 110,984.52
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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.