Finding the Fourth Proportional to 103,623.67, 155,435.49 and 68,555.14
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Solution
The fourth proportional to 103,623.67, 155,435.49 and 68,555.14 is: 102,832.70
Step by Step Solution
- Step 1: Write the proportion equation
103,623.67 : 155,435.49 = 68,555.14 : x - Step 2: Convert to fraction form
103,623.67/155,435.49 = 68,555.14/x - Step 3: Cross multiply
103,623.67x = 155,435.49 × 68,555.14 - Step 4: Simplify right side
103,623.67x = 10,655,901,777.92 - Step 5: Solve for x
x = 10,655,901,777.92/103,623.67 - Step 6: Final answer
x = 102,832.70
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1.5x scale
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.