Finding the Fourth Proportional to 156,921.24, 235,249.21 and 68,107.98
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Solution
The fourth proportional to 156,921.24, 235,249.21 and 68,107.98 is: 102,104.40
Step by Step Solution
- Step 1: Write the proportion equation
156,921.24 : 235,249.21 = 68,107.98 : x - Step 2: Convert to fraction form
156,921.24/235,249.21 = 68,107.98/x - Step 3: Cross multiply
156,921.24x = 235,249.21 × 68,107.98 - Step 4: Simplify right side
156,921.24x = 16,022,348,489.70 - Step 5: Solve for x
x = 16,022,348,489.70/156,921.24 - Step 6: Final answer
x = 102,104.40
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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.