Finding the Fourth Proportional to 139,173.03, 208,773.21 and 39,333.99
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Solution
The fourth proportional to 139,173.03, 208,773.21 and 39,333.99 is: 59,004.85
Step by Step Solution
- Step 1: Write the proportion equation
139,173.03 : 208,773.21 = 39,333.99 : x - Step 2: Convert to fraction form
139,173.03/208,773.21 = 39,333.99/x - Step 3: Cross multiply
139,173.03x = 208,773.21 × 39,333.99 - Step 4: Simplify right side
139,173.03x = 8,211,883,354.41 - Step 5: Solve for x
x = 8,211,883,354.41/139,173.03 - Step 6: Final answer
x = 59,004.85
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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.