Finding the Fourth Proportional to 103,722.10, 155,194.35 and 68,730.10
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Solution
The fourth proportional to 103,722.10, 155,194.35 and 68,730.10 is: 102,837.52
Step by Step Solution
- Step 1: Write the proportion equation
103,722.10 : 155,194.35 = 68,730.10 : x - Step 2: Convert to fraction form
103,722.10/155,194.35 = 68,730.10/x - Step 3: Cross multiply
103,722.10x = 155,194.35 × 68,730.10 - Step 4: Simplify right side
103,722.10x = 10,666,523,194.94 - Step 5: Solve for x
x = 10,666,523,194.94/103,722.10 - Step 6: Final answer
x = 102,837.52
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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.