Finding the Fourth Proportional to 107,205.55, 160,816.07 and 28,318.75
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Solution
The fourth proportional to 107,205.55, 160,816.07 and 28,318.75 is: 42,480.17
Step by Step Solution
- Step 1: Write the proportion equation
107,205.55 : 160,816.07 = 28,318.75 : x - Step 2: Convert to fraction form
107,205.55/160,816.07 = 28,318.75/x - Step 3: Cross multiply
107,205.55x = 160,816.07 × 28,318.75 - Step 4: Simplify right side
107,205.55x = 4,554,110,082.31 - Step 5: Solve for x
x = 4,554,110,082.31/107,205.55 - Step 6: Final answer
x = 42,480.17
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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.