Finding the Fourth Proportional to 128,833.26, 193,304.97 and 66,547.50
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Solution
The fourth proportional to 128,833.26, 193,304.97 and 66,547.50 is: 99,849.70
Step by Step Solution
- Step 1: Write the proportion equation
128,833.26 : 193,304.97 = 66,547.50 : x - Step 2: Convert to fraction form
128,833.26/193,304.97 = 66,547.50/x - Step 3: Cross multiply
128,833.26x = 193,304.97 × 66,547.50 - Step 4: Simplify right side
128,833.26x = 12,863,962,491.08 - Step 5: Solve for x
x = 12,863,962,491.08/128,833.26 - Step 6: Final answer
x = 99,849.70
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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.