Finding the Fourth Proportional to 154,214.24, 212,816.04 and 86,233.68
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Solution
The fourth proportional to 154,214.24, 212,816.04 and 86,233.68 is: 119,002.70
Step by Step Solution
- Step 1: Write the proportion equation
154,214.24 : 212,816.04 = 86,233.68 : x - Step 2: Convert to fraction form
154,214.24/212,816.04 = 86,233.68/x - Step 3: Cross multiply
154,214.24x = 212,816.04 × 86,233.68 - Step 4: Simplify right side
154,214.24x = 18,351,910,292.23 - Step 5: Solve for x
x = 18,351,910,292.23/154,214.24 - Step 6: Final answer
x = 119,002.70
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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.