Finding the Fourth Proportional to 172,517.82, 238,038.74 and 100,883.99
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Solution
The fourth proportional to 172,517.82, 238,038.74 and 100,883.99 is: 139,198.93
Step by Step Solution
- Step 1: Write the proportion equation
172,517.82 : 238,038.74 = 100,883.99 : x - Step 2: Convert to fraction form
172,517.82/238,038.74 = 100,883.99/x - Step 3: Cross multiply
172,517.82x = 238,038.74 × 100,883.99 - Step 4: Simplify right side
172,517.82x = 24,014,296,171.16 - Step 5: Solve for x
x = 24,014,296,171.16/172,517.82 - Step 6: Final answer
x = 139,198.93
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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.