Finding the Fourth Proportional to 124,791.24, 172,212.36 and 68,202.64
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Solution
The fourth proportional to 124,791.24, 172,212.36 and 68,202.64 is: 94,119.89
Step by Step Solution
- Step 1: Write the proportion equation
124,791.24 : 172,212.36 = 68,202.64 : x - Step 2: Convert to fraction form
124,791.24/172,212.36 = 68,202.64/x - Step 3: Cross multiply
124,791.24x = 172,212.36 × 68,202.64 - Step 4: Simplify right side
124,791.24x = 11,745,337,592.63 - Step 5: Solve for x
x = 11,745,337,592.63/124,791.24 - Step 6: Final answer
x = 94,119.89
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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.