Finding the Fourth Proportional to 120,655.44, 166,448.52 and 75,304.08
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Solution
The fourth proportional to 120,655.44, 166,448.52 and 75,304.08 is: 103,884.69
Step by Step Solution
- Step 1: Write the proportion equation
120,655.44 : 166,448.52 = 75,304.08 : x - Step 2: Convert to fraction form
120,655.44/166,448.52 = 75,304.08/x - Step 3: Cross multiply
120,655.44x = 166,448.52 × 75,304.08 - Step 4: Simplify right side
120,655.44x = 12,534,252,665.96 - Step 5: Solve for x
x = 12,534,252,665.96/120,655.44 - Step 6: Final answer
x = 103,884.69
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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.