Finding the Fourth Proportional to 75,197.73, 103,909.74 and 71,553.81
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Solution
The fourth proportional to 75,197.73, 103,909.74 and 71,553.81 is: 98,874.50
Step by Step Solution
- Step 1: Write the proportion equation
75,197.73 : 103,909.74 = 71,553.81 : x - Step 2: Convert to fraction form
75,197.73/103,909.74 = 71,553.81/x - Step 3: Cross multiply
75,197.73x = 103,909.74 × 71,553.81 - Step 4: Simplify right side
75,197.73x = 7,435,137,793.11 - Step 5: Solve for x
x = 7,435,137,793.11/75,197.73 - Step 6: Final answer
x = 98,874.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.