Finding the Fourth Proportional to 146,511.28, 202,185.68 and 79,443.28
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Solution
The fourth proportional to 146,511.28, 202,185.68 and 79,443.28 is: 109,631.79
Step by Step Solution
- Step 1: Write the proportion equation
146,511.28 : 202,185.68 = 79,443.28 : x - Step 2: Convert to fraction form
146,511.28/202,185.68 = 79,443.28/x - Step 3: Cross multiply
146,511.28x = 202,185.68 × 79,443.28 - Step 4: Simplify right side
146,511.28x = 16,062,293,588.23 - Step 5: Solve for x
x = 16,062,293,588.23/146,511.28 - Step 6: Final answer
x = 109,631.79
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1.5x scale
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.