Finding the Fourth Proportional to 133,052.20, 199,578.30 and 39,545.80
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Solution
The fourth proportional to 133,052.20, 199,578.30 and 39,545.80 is: 59,318.70
Step by Step Solution
- Step 1: Write the proportion equation
133,052.20 : 199,578.30 = 39,545.80 : x - Step 2: Convert to fraction form
133,052.20/199,578.30 = 39,545.80/x - Step 3: Cross multiply
133,052.20x = 199,578.30 × 39,545.80 - Step 4: Simplify right side
133,052.20x = 7,892,483,536.14 - Step 5: Solve for x
x = 7,892,483,536.14/133,052.20 - Step 6: Final answer
x = 59,318.70
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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.