Finding the Fourth Proportional to 112,207.28, 168,212.36 and 45,703.31
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Solution
The fourth proportional to 112,207.28, 168,212.36 and 45,703.31 is: 68,514.82
Step by Step Solution
- Step 1: Write the proportion equation
112,207.28 : 168,212.36 = 45,703.31 : x - Step 2: Convert to fraction form
112,207.28/168,212.36 = 45,703.31/x - Step 3: Cross multiply
112,207.28x = 168,212.36 × 45,703.31 - Step 4: Simplify right side
112,207.28x = 7,687,860,908.11 - Step 5: Solve for x
x = 7,687,860,908.11/112,207.28 - Step 6: Final answer
x = 68,514.82
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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.