Finding the Fourth Proportional to 147,920.12, 204,129.76 and 84,294.84
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Solution
The fourth proportional to 147,920.12, 204,129.76 and 84,294.84 is: 116,326.88
Step by Step Solution
- Step 1: Write the proportion equation
147,920.12 : 204,129.76 = 84,294.84 : x - Step 2: Convert to fraction form
147,920.12/204,129.76 = 84,294.84/x - Step 3: Cross multiply
147,920.12x = 204,129.76 × 84,294.84 - Step 4: Simplify right side
147,920.12x = 17,207,085,458.44 - Step 5: Solve for x
x = 17,207,085,458.44/147,920.12 - Step 6: Final answer
x = 116,326.88
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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.