Finding the Fourth Proportional to 120,463.26, 166,234.80 and 69,478.08
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Solution
The fourth proportional to 120,463.26, 166,234.80 and 69,478.08 is: 95,877.16
Step by Step Solution
- Step 1: Write the proportion equation
120,463.26 : 166,234.80 = 69,478.08 : x - Step 2: Convert to fraction form
120,463.26/166,234.80 = 69,478.08/x - Step 3: Cross multiply
120,463.26x = 166,234.80 × 69,478.08 - Step 4: Simplify right side
120,463.26x = 11,549,674,733.18 - Step 5: Solve for x
x = 11,549,674,733.18/120,463.26 - Step 6: Final answer
x = 95,877.16
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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.