Finding the Fourth Proportional to 129,203.35, 193,607.67 and 54,282.53
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Solution
The fourth proportional to 129,203.35, 193,607.67 and 54,282.53 is: 81,340.89
Step by Step Solution
- Step 1: Write the proportion equation
129,203.35 : 193,607.67 = 54,282.53 : x - Step 2: Convert to fraction form
129,203.35/193,607.67 = 54,282.53/x - Step 3: Cross multiply
129,203.35x = 193,607.67 × 54,282.53 - Step 4: Simplify right side
129,203.35x = 10,509,514,639.02 - Step 5: Solve for x
x = 10,509,514,639.02/129,203.35 - Step 6: Final answer
x = 81,340.89
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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.