Finding the Fourth Proportional to 124,849.72, 172,293.33 and 68,261.09
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Solution
The fourth proportional to 124,849.72, 172,293.33 and 68,261.09 is: 94,200.70
Step by Step Solution
- Step 1: Write the proportion equation
124,849.72 : 172,293.33 = 68,261.09 : x - Step 2: Convert to fraction form
124,849.72/172,293.33 = 68,261.09/x - Step 3: Cross multiply
124,849.72x = 172,293.33 × 68,261.09 - Step 4: Simplify right side
124,849.72x = 11,760,931,192.24 - Step 5: Solve for x
x = 11,760,931,192.24/124,849.72 - Step 6: Final answer
x = 94,200.70
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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.