Finding the Fourth Proportional to 164,471.70, 246,715.65 and 85,739.70
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Solution
The fourth proportional to 164,471.70, 246,715.65 and 85,739.70 is: 128,613.77
Step by Step Solution
- Step 1: Write the proportion equation
164,471.70 : 246,715.65 = 85,739.70 : x - Step 2: Convert to fraction form
164,471.70/246,715.65 = 85,739.70/x - Step 3: Cross multiply
164,471.70x = 246,715.65 × 85,739.70 - Step 4: Simplify right side
164,471.70x = 21,153,325,816.31 - Step 5: Solve for x
x = 21,153,325,816.31/164,471.70 - Step 6: Final answer
x = 128,613.77
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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.