Finding the Fourth Proportional to 158,516.92, 218,551.98 and 113,249.08
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Solution
The fourth proportional to 158,516.92, 218,551.98 and 113,249.08 is: 156,139.87
Step by Step Solution
- Step 1: Write the proportion equation
158,516.92 : 218,551.98 = 113,249.08 : x - Step 2: Convert to fraction form
158,516.92/218,551.98 = 113,249.08/x - Step 3: Cross multiply
158,516.92x = 218,551.98 × 113,249.08 - Step 4: Simplify right side
158,516.92x = 24,750,810,667.18 - Step 5: Solve for x
x = 24,750,810,667.18/158,516.92 - Step 6: Final answer
x = 156,139.87
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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.