Finding the Fourth Proportional to 68,756.17, 103,134.35 and 18,836.70
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Solution
The fourth proportional to 68,756.17, 103,134.35 and 18,836.70 is: 28,255.08
Step by Step Solution
- Step 1: Write the proportion equation
68,756.17 : 103,134.35 = 18,836.70 : x - Step 2: Convert to fraction form
68,756.17/103,134.35 = 18,836.70/x - Step 3: Cross multiply
68,756.17x = 103,134.35 × 18,836.70 - Step 4: Simplify right side
68,756.17x = 1,942,710,810.65 - Step 5: Solve for x
x = 1,942,710,810.65/68,756.17 - Step 6: Final answer
x = 28,255.08
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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.