Finding the Fourth Proportional to 112,137.62, 154,743.99 and 63,733.08
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Solution
The fourth proportional to 112,137.62, 154,743.99 and 63,733.08 is: 87,948.28
Step by Step Solution
- Step 1: Write the proportion equation
112,137.62 : 154,743.99 = 63,733.08 : x - Step 2: Convert to fraction form
112,137.62/154,743.99 = 63,733.08/x - Step 3: Cross multiply
112,137.62x = 154,743.99 × 63,733.08 - Step 4: Simplify right side
112,137.62x = 9,862,310,565.05 - Step 5: Solve for x
x = 9,862,310,565.05/112,137.62 - Step 6: Final answer
x = 87,948.28
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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.