Finding the Fourth Proportional to 86,100.11, 129,150.42 and 26,129.08
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Solution
The fourth proportional to 86,100.11, 129,150.42 and 26,129.08 is: 39,193.70
Step by Step Solution
- Step 1: Write the proportion equation
86,100.11 : 129,150.42 = 26,129.08 : x - Step 2: Convert to fraction form
86,100.11/129,150.42 = 26,129.08/x - Step 3: Cross multiply
86,100.11x = 129,150.42 × 26,129.08 - Step 4: Simplify right side
86,100.11x = 3,374,581,940.13 - Step 5: Solve for x
x = 3,374,581,940.13/86,100.11 - Step 6: Final answer
x = 39,193.70
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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.