Finding the Fourth Proportional to 129,613.13, 178,866.11 and 69,997.13
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Solution
The fourth proportional to 129,613.13, 178,866.11 and 69,997.13 is: 96,596.03
Step by Step Solution
- Step 1: Write the proportion equation
129,613.13 : 178,866.11 = 69,997.13 : x - Step 2: Convert to fraction form
129,613.13/178,866.11 = 69,997.13/x - Step 3: Cross multiply
129,613.13x = 178,866.11 × 69,997.13 - Step 4: Simplify right side
129,613.13x = 12,520,114,354.26 - Step 5: Solve for x
x = 12,520,114,354.26/129,613.13 - Step 6: Final answer
x = 96,596.03
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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.