Finding the Fourth Proportional to 131,720.99, 181,775 and 72,104.99
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Solution
The fourth proportional to 131,720.99, 181,775 and 72,104.99 is: 99,504.90
Step by Step Solution
- Step 1: Write the proportion equation
131,720.99 : 181,775 = 72,104.99 : x - Step 2: Convert to fraction form
131,720.99/181,775 = 72,104.99/x - Step 3: Cross multiply
131,720.99x = 181,775 × 72,104.99 - Step 4: Simplify right side
131,720.99x = 13,106,884,557.25 - Step 5: Solve for x
x = 13,106,884,557.25/131,720.99 - Step 6: Final answer
x = 99,504.90
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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.