Finding the Fourth Proportional to 140,101.13, 193,389.44 and 82,740.68
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Solution
The fourth proportional to 140,101.13, 193,389.44 and 82,740.68 is: 114,211.60
Step by Step Solution
- Step 1: Write the proportion equation
140,101.13 : 193,389.44 = 82,740.68 : x - Step 2: Convert to fraction form
140,101.13/193,389.44 = 82,740.68/x - Step 3: Cross multiply
140,101.13x = 193,389.44 × 82,740.68 - Step 4: Simplify right side
140,101.13x = 16,001,173,770.42 - Step 5: Solve for x
x = 16,001,173,770.42/140,101.13 - Step 6: Final answer
x = 114,211.60
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1.5x scale
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.