Finding the Fourth Proportional to 163,321.92, 225,381.60 and 91,702.08
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Solution
The fourth proportional to 163,321.92, 225,381.60 and 91,702.08 is: 126,547.38
Step by Step Solution
- Step 1: Write the proportion equation
163,321.92 : 225,381.60 = 91,702.08 : x - Step 2: Convert to fraction form
163,321.92/225,381.60 = 91,702.08/x - Step 3: Cross multiply
163,321.92x = 225,381.60 × 91,702.08 - Step 4: Simplify right side
163,321.92x = 20,667,961,513.73 - Step 5: Solve for x
x = 20,667,961,513.73/163,321.92 - Step 6: Final answer
x = 126,547.38
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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.