Finding the Fourth Proportional to 120,385.36, 166,137.18 and 65,941.36
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Solution
The fourth proportional to 120,385.36, 166,137.18 and 65,941.36 is: 91,002.02
Step by Step Solution
- Step 1: Write the proportion equation
120,385.36 : 166,137.18 = 65,941.36 : x - Step 2: Convert to fraction form
120,385.36/166,137.18 = 65,941.36/x - Step 3: Cross multiply
120,385.36x = 166,137.18 × 65,941.36 - Step 4: Simplify right side
120,385.36x = 10,955,310,933.14 - Step 5: Solve for x
x = 10,955,310,933.14/120,385.36 - Step 6: Final answer
x = 91,002.02
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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.