Finding the Fourth Proportional to 122,049.99, 168,432.12 and 68,346.36
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Solution
The fourth proportional to 122,049.99, 168,432.12 and 68,346.36 is: 94,319.73
Step by Step Solution
- Step 1: Write the proportion equation
122,049.99 : 168,432.12 = 68,346.36 : x - Step 2: Convert to fraction form
122,049.99/168,432.12 = 68,346.36/x - Step 3: Cross multiply
122,049.99x = 168,432.12 × 68,346.36 - Step 4: Simplify right side
122,049.99x = 11,511,722,309.08 - Step 5: Solve for x
x = 11,511,722,309.08/122,049.99 - Step 6: Final answer
x = 94,319.73
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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.