Finding the Fourth Proportional to 168,235.61, 252,135.42 and 68,341.31
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Solution
The fourth proportional to 168,235.61, 252,135.42 and 68,341.31 is: 102,423.41
Step by Step Solution
- Step 1: Write the proportion equation
168,235.61 : 252,135.42 = 68,341.31 : x - Step 2: Convert to fraction form
168,235.61/252,135.42 = 68,341.31/x - Step 3: Cross multiply
168,235.61x = 252,135.42 × 68,341.31 - Step 4: Simplify right side
168,235.61x = 17,231,264,900.20 - Step 5: Solve for x
x = 17,231,264,900.20/168,235.61 - Step 6: Final answer
x = 102,423.41
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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.