Finding the Fourth Proportional to 118,331.10, 177,453.45 and 39,447.90
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Solution
The fourth proportional to 118,331.10, 177,453.45 and 39,447.90 is: 59,157.45
Step by Step Solution
- Step 1: Write the proportion equation
118,331.10 : 177,453.45 = 39,447.90 : x - Step 2: Convert to fraction form
118,331.10/177,453.45 = 39,447.90/x - Step 3: Cross multiply
118,331.10x = 177,453.45 × 39,447.90 - Step 4: Simplify right side
118,331.10x = 7,000,165,950.26 - Step 5: Solve for x
x = 7,000,165,950.26/118,331.10 - Step 6: Final answer
x = 59,157.45
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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.