Finding the Fourth Proportional to 137,381.24, 189,491.44 and 96,631.79
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Solution
The fourth proportional to 137,381.24, 189,491.44 and 96,631.79 is: 133,285.28
Step by Step Solution
- Step 1: Write the proportion equation
137,381.24 : 189,491.44 = 96,631.79 : x - Step 2: Convert to fraction form
137,381.24/189,491.44 = 96,631.79/x - Step 3: Cross multiply
137,381.24x = 189,491.44 × 96,631.79 - Step 4: Simplify right side
137,381.24x = 18,310,897,269.03 - Step 5: Solve for x
x = 18,310,897,269.03/137,381.24 - Step 6: Final answer
x = 133,285.28
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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.