Finding the Fourth Proportional to 161,690.58, 242,446.60 and 75,041.99
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Solution
The fourth proportional to 161,690.58, 242,446.60 and 75,041.99 is: 112,521.55
Step by Step Solution
- Step 1: Write the proportion equation
161,690.58 : 242,446.60 = 75,041.99 : x - Step 2: Convert to fraction form
161,690.58/242,446.60 = 75,041.99/x - Step 3: Cross multiply
161,690.58x = 242,446.60 × 75,041.99 - Step 4: Simplify right side
161,690.58x = 18,193,673,932.90 - Step 5: Solve for x
x = 18,193,673,932.90/161,690.58 - Step 6: Final answer
x = 112,521.55
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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.