Finding the Fourth Proportional to 153,310.52, 229,965.84 and 68,972.19
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Solution
The fourth proportional to 153,310.52, 229,965.84 and 68,972.19 is: 103,458.32
Step by Step Solution
- Step 1: Write the proportion equation
153,310.52 : 229,965.84 = 68,972.19 : x - Step 2: Convert to fraction form
153,310.52/229,965.84 = 68,972.19/x - Step 3: Cross multiply
153,310.52x = 229,965.84 × 68,972.19 - Step 4: Simplify right side
153,310.52x = 15,861,247,609.99 - Step 5: Solve for x
x = 15,861,247,609.99/153,310.52 - Step 6: Final answer
x = 103,458.32
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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.