Finding the Fourth Proportional to 163,702.80, 245,323.80 and 121,251.60
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Solution
The fourth proportional to 163,702.80, 245,323.80 and 121,251.60 is: 181,706.75
Step by Step Solution
- Step 1: Write the proportion equation
163,702.80 : 245,323.80 = 121,251.60 : x - Step 2: Convert to fraction form
163,702.80/245,323.80 = 121,251.60/x - Step 3: Cross multiply
163,702.80x = 245,323.80 × 121,251.60 - Step 4: Simplify right side
163,702.80x = 29,745,903,268.08 - Step 5: Solve for x
x = 29,745,903,268.08/163,702.80 - Step 6: Final answer
x = 181,706.75
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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.