Finding the Fourth Proportional to 154,103.08, 212,666.46 and 87,035.08
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Solution
The fourth proportional to 154,103.08, 212,666.46 and 87,035.08 is: 120,110.79
Step by Step Solution
- Step 1: Write the proportion equation
154,103.08 : 212,666.46 = 87,035.08 : x - Step 2: Convert to fraction form
154,103.08/212,666.46 = 87,035.08/x - Step 3: Cross multiply
154,103.08x = 212,666.46 × 87,035.08 - Step 4: Simplify right side
154,103.08x = 18,509,442,359.42 - Step 5: Solve for x
x = 18,509,442,359.42/154,103.08 - Step 6: Final answer
x = 120,110.79
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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.