Finding the Fourth Proportional to 124,945.26, 172,424.50 and 68,357.84
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Solution
The fourth proportional to 124,945.26, 172,424.50 and 68,357.84 is: 94,333.84
Step by Step Solution
- Step 1: Write the proportion equation
124,945.26 : 172,424.50 = 68,357.84 : x - Step 2: Convert to fraction form
124,945.26/172,424.50 = 68,357.84/x - Step 3: Cross multiply
124,945.26x = 172,424.50 × 68,357.84 - Step 4: Simplify right side
124,945.26x = 11,786,566,383.08 - Step 5: Solve for x
x = 11,786,566,383.08/124,945.26 - Step 6: Final answer
x = 94,333.84
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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.