Finding the Fourth Proportional to 163,516.80, 245,369.79 and 68,739.48
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Solution
The fourth proportional to 163,516.80, 245,369.79 and 68,739.48 is: 103,148.98
Step by Step Solution
- Step 1: Write the proportion equation
163,516.80 : 245,369.79 = 68,739.48 : x - Step 2: Convert to fraction form
163,516.80/245,369.79 = 68,739.48/x - Step 3: Cross multiply
163,516.80x = 245,369.79 × 68,739.48 - Step 4: Simplify right side
163,516.80x = 16,866,591,772.31 - Step 5: Solve for x
x = 16,866,591,772.31/163,516.80 - Step 6: Final answer
x = 103,148.98
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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.