Finding the Fourth Proportional to 156,921.49, 235,249.59 and 68,108.23
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Solution
The fourth proportional to 156,921.49, 235,249.59 and 68,108.23 is: 102,104.77
Step by Step Solution
- Step 1: Write the proportion equation
156,921.49 : 235,249.59 = 68,108.23 : x - Step 2: Convert to fraction form
156,921.49/235,249.59 = 68,108.23/x - Step 3: Cross multiply
156,921.49x = 235,249.59 × 68,108.23 - Step 4: Simplify right side
156,921.49x = 16,022,433,183.13 - Step 5: Solve for x
x = 16,022,433,183.13/156,921.49 - Step 6: Final answer
x = 102,104.77
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1.5x scale
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.