Finding the Fourth Proportional to 103,628.96, 155,443.44 and 68,560.41
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Solution
The fourth proportional to 103,628.96, 155,443.44 and 68,560.41 is: 102,840.62
Step by Step Solution
- Step 1: Write the proportion equation
103,628.96 : 155,443.44 = 68,560.41 : x - Step 2: Convert to fraction form
103,628.96/155,443.44 = 68,560.41/x - Step 3: Cross multiply
103,628.96x = 155,443.44 × 68,560.41 - Step 4: Simplify right side
103,628.96x = 10,657,265,978.21 - Step 5: Solve for x
x = 10,657,265,978.21/103,628.96 - Step 6: Final answer
x = 102,840.62
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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.