Finding the Fourth Proportional to 163,539.80, 245,115.30 and 68,769.80
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Solution
The fourth proportional to 163,539.80, 245,115.30 and 68,769.80 is: 103,072.95
Step by Step Solution
- Step 1: Write the proportion equation
163,539.80 : 245,115.30 = 68,769.80 : x - Step 2: Convert to fraction form
163,539.80/245,115.30 = 68,769.80/x - Step 3: Cross multiply
163,539.80x = 245,115.30 × 68,769.80 - Step 4: Simplify right side
163,539.80x = 16,856,530,157.94 - Step 5: Solve for x
x = 16,856,530,157.94/163,539.80 - Step 6: Final answer
x = 103,072.95
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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.