Finding the Fourth Proportional to 103,149.12, 154,526.04 and 69,811.68
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Solution
The fourth proportional to 103,149.12, 154,526.04 and 69,811.68 is: 104,583.75
Step by Step Solution
- Step 1: Write the proportion equation
103,149.12 : 154,526.04 = 69,811.68 : x - Step 2: Convert to fraction form
103,149.12/154,526.04 = 69,811.68/x - Step 3: Cross multiply
103,149.12x = 154,526.04 × 69,811.68 - Step 4: Simplify right side
103,149.12x = 10,787,722,107.09 - Step 5: Solve for x
x = 10,787,722,107.09/103,149.12 - Step 6: Final answer
x = 104,583.75
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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.