Finding the Fourth Proportional to 138,402.99, 207,443.19 and 63,531.05
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Solution
The fourth proportional to 138,402.99, 207,443.19 and 63,531.05 is: 95,222.53
Step by Step Solution
- Step 1: Write the proportion equation
138,402.99 : 207,443.19 = 63,531.05 : x - Step 2: Convert to fraction form
138,402.99/207,443.19 = 63,531.05/x - Step 3: Cross multiply
138,402.99x = 207,443.19 × 63,531.05 - Step 4: Simplify right side
138,402.99x = 13,179,082,877.08 - Step 5: Solve for x
x = 13,179,082,877.08/138,402.99 - Step 6: Final answer
x = 95,222.53
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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.