Finding the Fourth Proportional to 68,734.68, 103,101.93 and 18,815.19
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Solution
The fourth proportional to 68,734.68, 103,101.93 and 18,815.19 is: 28,222.76
Step by Step Solution
- Step 1: Write the proportion equation
68,734.68 : 103,101.93 = 18,815.19 : x - Step 2: Convert to fraction form
68,734.68/103,101.93 = 18,815.19/x - Step 3: Cross multiply
68,734.68x = 103,101.93 × 18,815.19 - Step 4: Simplify right side
68,734.68x = 1,939,882,402.32 - Step 5: Solve for x
x = 1,939,882,402.32/68,734.68 - Step 6: Final answer
x = 28,222.76
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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.