Finding the Fourth Proportional to 172,147.18, 237,544.25 and 99,539.09
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Solution
The fourth proportional to 172,147.18, 237,544.25 and 99,539.09 is: 137,353.03
Step by Step Solution
- Step 1: Write the proportion equation
172,147.18 : 237,544.25 = 99,539.09 : x - Step 2: Convert to fraction form
172,147.18/237,544.25 = 99,539.09/x - Step 3: Cross multiply
172,147.18x = 237,544.25 × 99,539.09 - Step 4: Simplify right side
172,147.18x = 23,644,937,371.20 - Step 5: Solve for x
x = 23,644,937,371.20/172,147.18 - Step 6: Final answer
x = 137,353.03
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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.