Finding the Fourth Proportional to 168,396.91, 232,381.95 and 100,378.82
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Solution
The fourth proportional to 168,396.91, 232,381.95 and 100,378.82 is: 138,519.32
Step by Step Solution
- Step 1: Write the proportion equation
168,396.91 : 232,381.95 = 100,378.82 : x - Step 2: Convert to fraction form
168,396.91/232,381.95 = 100,378.82/x - Step 3: Cross multiply
168,396.91x = 232,381.95 × 100,378.82 - Step 4: Simplify right side
168,396.91x = 23,326,225,481.26 - Step 5: Solve for x
x = 23,326,225,481.26/168,396.91 - Step 6: Final answer
x = 138,519.32
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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.