Finding the Fourth Proportional to 136,991.19, 205,503.39 and 48,226.53
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Solution
The fourth proportional to 136,991.19, 205,503.39 and 48,226.53 is: 72,345.64
Step by Step Solution
- Step 1: Write the proportion equation
136,991.19 : 205,503.39 = 48,226.53 : x - Step 2: Convert to fraction form
136,991.19/205,503.39 = 48,226.53/x - Step 3: Cross multiply
136,991.19x = 205,503.39 × 48,226.53 - Step 4: Simplify right side
136,991.19x = 9,910,715,402.94 - Step 5: Solve for x
x = 9,910,715,402.94/136,991.19 - Step 6: Final answer
x = 72,345.64
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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.