Finding the Fourth Proportional to 103,618.51, 155,427.78 and 68,549.98
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Solution
The fourth proportional to 103,618.51, 155,427.78 and 68,549.98 is: 102,824.98
Step by Step Solution
- Step 1: Write the proportion equation
103,618.51 : 155,427.78 = 68,549.98 : x - Step 2: Convert to fraction form
103,618.51/155,427.78 = 68,549.98/x - Step 3: Cross multiply
103,618.51x = 155,427.78 × 68,549.98 - Step 4: Simplify right side
103,618.51x = 10,654,571,210.44 - Step 5: Solve for x
x = 10,654,571,210.44/103,618.51 - Step 6: Final answer
x = 102,824.98
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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.