Finding the Fourth Proportional to 147,391.29, 203,398.97 and 83,729.09
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Solution
The fourth proportional to 147,391.29, 203,398.97 and 83,729.09 is: 115,545.56
Step by Step Solution
- Step 1: Write the proportion equation
147,391.29 : 203,398.97 = 83,729.09 : x - Step 2: Convert to fraction form
147,391.29/203,398.97 = 83,729.09/x - Step 3: Cross multiply
147,391.29x = 203,398.97 × 83,729.09 - Step 4: Simplify right side
147,391.29x = 17,030,409,229.40 - Step 5: Solve for x
x = 17,030,409,229.40/147,391.29 - Step 6: Final answer
x = 115,545.56
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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.