Finding the Fourth Proportional to 108,711.36, 163,378.08 and 53,346.24
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Solution
The fourth proportional to 108,711.36, 163,378.08 and 53,346.24 is: 80,171.99
Step by Step Solution
- Step 1: Write the proportion equation
108,711.36 : 163,378.08 = 53,346.24 : x - Step 2: Convert to fraction form
108,711.36/163,378.08 = 53,346.24/x - Step 3: Cross multiply
108,711.36x = 163,378.08 × 53,346.24 - Step 4: Simplify right side
108,711.36x = 8,715,606,266.42 - Step 5: Solve for x
x = 8,715,606,266.42/108,711.36 - Step 6: Final answer
x = 80,171.99
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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.