Finding the Fourth Proportional to 103,544.84, 142,797.12 and 76,754.09
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Solution
The fourth proportional to 103,544.84, 142,797.12 and 76,754.09 is: 105,850.40
Step by Step Solution
- Step 1: Write the proportion equation
103,544.84 : 142,797.12 = 76,754.09 : x - Step 2: Convert to fraction form
103,544.84/142,797.12 = 76,754.09/x - Step 3: Cross multiply
103,544.84x = 142,797.12 × 76,754.09 - Step 4: Simplify right side
103,544.84x = 10,960,263,000.22 - Step 5: Solve for x
x = 10,960,263,000.22/103,544.84 - Step 6: Final answer
x = 105,850.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.