Finding the Fourth Proportional to 102,305.05, 153,401.99 and 54,976.55
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Solution
The fourth proportional to 102,305.05, 153,401.99 and 54,976.55 is: 82,434.95
Step by Step Solution
- Step 1: Write the proportion equation
102,305.05 : 153,401.99 = 54,976.55 : x - Step 2: Convert to fraction form
102,305.05/153,401.99 = 54,976.55/x - Step 3: Cross multiply
102,305.05x = 153,401.99 × 54,976.55 - Step 4: Simplify right side
102,305.05x = 8,433,511,131.44 - Step 5: Solve for x
x = 8,433,511,131.44/102,305.05 - Step 6: Final answer
x = 82,434.95
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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.