Finding the Fourth Proportional to 154,793.04, 213,616.80 and 86,825.10
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Solution
The fourth proportional to 154,793.04, 213,616.80 and 86,825.10 is: 119,819.99
Step by Step Solution
- Step 1: Write the proportion equation
154,793.04 : 213,616.80 = 86,825.10 : x - Step 2: Convert to fraction form
154,793.04/213,616.80 = 86,825.10/x - Step 3: Cross multiply
154,793.04x = 213,616.80 × 86,825.10 - Step 4: Simplify right side
154,793.04x = 18,547,300,021.68 - Step 5: Solve for x
x = 18,547,300,021.68/154,793.04 - Step 6: Final answer
x = 119,819.99
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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.