Finding the Fourth Proportional to 133,046.20, 199,569.30 and 39,539.80
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Solution
The fourth proportional to 133,046.20, 199,569.30 and 39,539.80 is: 59,309.70
Step by Step Solution
- Step 1: Write the proportion equation
133,046.20 : 199,569.30 = 39,539.80 : x - Step 2: Convert to fraction form
133,046.20/199,569.30 = 39,539.80/x - Step 3: Cross multiply
133,046.20x = 199,569.30 × 39,539.80 - Step 4: Simplify right side
133,046.20x = 7,890,930,208.14 - Step 5: Solve for x
x = 7,890,930,208.14/133,046.20 - Step 6: Final answer
x = 59,309.70
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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.