Finding the Fourth Proportional to 103,677.30, 155,448.99 and 56,917.62
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Solution
The fourth proportional to 103,677.30, 155,448.99 and 56,917.62 is: 85,339.67
Step by Step Solution
- Step 1: Write the proportion equation
103,677.30 : 155,448.99 = 56,917.62 : x - Step 2: Convert to fraction form
103,677.30/155,448.99 = 56,917.62/x - Step 3: Cross multiply
103,677.30x = 155,448.99 × 56,917.62 - Step 4: Simplify right side
103,677.30x = 8,847,786,542.20 - Step 5: Solve for x
x = 8,847,786,542.20/103,677.30 - Step 6: Final answer
x = 85,339.67
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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.