Finding the Fourth Proportional to 139,755.44, 209,630.68 and 34,574.40
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Solution
The fourth proportional to 139,755.44, 209,630.68 and 34,574.40 is: 51,860.99
Step by Step Solution
- Step 1: Write the proportion equation
139,755.44 : 209,630.68 = 34,574.40 : x - Step 2: Convert to fraction form
139,755.44/209,630.68 = 34,574.40/x - Step 3: Cross multiply
139,755.44x = 209,630.68 × 34,574.40 - Step 4: Simplify right side
139,755.44x = 7,247,854,982.59 - Step 5: Solve for x
x = 7,247,854,982.59/139,755.44 - Step 6: Final answer
x = 51,860.99
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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.