Finding the Fourth Proportional to 189,129.24, 260,979.12 and 108,537.48
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Solution
The fourth proportional to 189,129.24, 260,979.12 and 108,537.48 is: 149,770.69
Step by Step Solution
- Step 1: Write the proportion equation
189,129.24 : 260,979.12 = 108,537.48 : x - Step 2: Convert to fraction form
189,129.24/260,979.12 = 108,537.48/x - Step 3: Cross multiply
189,129.24x = 260,979.12 × 108,537.48 - Step 4: Simplify right side
189,129.24x = 28,326,016,017.42 - Step 5: Solve for x
x = 28,326,016,017.42/189,129.24 - Step 6: Final answer
x = 149,770.69
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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.