Finding the Fourth Proportional to 129,418.15, 193,963.66 and 58,265.02
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Solution
The fourth proportional to 129,418.15, 193,963.66 and 58,265.02 is: 87,323.89
Step by Step Solution
- Step 1: Write the proportion equation
129,418.15 : 193,963.66 = 58,265.02 : x - Step 2: Convert to fraction form
129,418.15/193,963.66 = 58,265.02/x - Step 3: Cross multiply
129,418.15x = 193,963.66 × 58,265.02 - Step 4: Simplify right side
129,418.15x = 11,301,296,529.17 - Step 5: Solve for x
x = 11,301,296,529.17/129,418.15 - Step 6: Final answer
x = 87,323.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.