Finding the Fourth Proportional to 102,517.68, 153,775.20 and 84,950.70
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Solution
The fourth proportional to 102,517.68, 153,775.20 and 84,950.70 is: 127,424.96
Step by Step Solution
- Step 1: Write the proportion equation
102,517.68 : 153,775.20 = 84,950.70 : x - Step 2: Convert to fraction form
102,517.68/153,775.20 = 84,950.70/x - Step 3: Cross multiply
102,517.68x = 153,775.20 × 84,950.70 - Step 4: Simplify right side
102,517.68x = 13,063,310,882.64 - Step 5: Solve for x
x = 13,063,310,882.64/102,517.68 - Step 6: Final answer
x = 127,424.96
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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.