Finding the Fourth Proportional to 124,791.27, 172,209.42 and 68,203.05
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Solution
The fourth proportional to 124,791.27, 172,209.42 and 68,203.05 is: 94,118.82
Step by Step Solution
- Step 1: Write the proportion equation
124,791.27 : 172,209.42 = 68,203.05 : x - Step 2: Convert to fraction form
124,791.27/172,209.42 = 68,203.05/x - Step 3: Cross multiply
124,791.27x = 172,209.42 × 68,203.05 - Step 4: Simplify right side
124,791.27x = 11,745,207,682.73 - Step 5: Solve for x
x = 11,745,207,682.73/124,791.27 - Step 6: Final answer
x = 94,118.82
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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.