Finding the Fourth Proportional to 163,543.11, 245,409.84 and 68,766.43
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Solution
The fourth proportional to 163,543.11, 245,409.84 and 68,766.43 is: 103,189.66
Step by Step Solution
- Step 1: Write the proportion equation
163,543.11 : 245,409.84 = 68,766.43 : x - Step 2: Convert to fraction form
163,543.11/245,409.84 = 68,766.43/x - Step 3: Cross multiply
163,543.11x = 245,409.84 × 68,766.43 - Step 4: Simplify right side
163,543.11x = 16,875,957,012.79 - Step 5: Solve for x
x = 16,875,957,012.79/163,543.11 - Step 6: Final answer
x = 103,189.66
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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.