Finding the Fourth Proportional to 138,549.98, 207,817.50 and 54,325.28
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Solution
The fourth proportional to 138,549.98, 207,817.50 and 54,325.28 is: 81,484.99
Step by Step Solution
- Step 1: Write the proportion equation
138,549.98 : 207,817.50 = 54,325.28 : x - Step 2: Convert to fraction form
138,549.98/207,817.50 = 54,325.28/x - Step 3: Cross multiply
138,549.98x = 207,817.50 × 54,325.28 - Step 4: Simplify right side
138,549.98x = 11,289,743,876.40 - Step 5: Solve for x
x = 11,289,743,876.40/138,549.98 - Step 6: Final answer
x = 81,484.99
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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.