Finding the Fourth Proportional to 107,858.64, 161,787.96 and 107,702.88
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Solution
The fourth proportional to 107,858.64, 161,787.96 and 107,702.88 is: 161,554.32
Step by Step Solution
- Step 1: Write the proportion equation
107,858.64 : 161,787.96 = 107,702.88 : x - Step 2: Convert to fraction form
107,858.64/161,787.96 = 107,702.88/x - Step 3: Cross multiply
107,858.64x = 161,787.96 × 107,702.88 - Step 4: Simplify right side
107,858.64x = 17,425,029,241.32 - Step 5: Solve for x
x = 17,425,029,241.32/107,858.64 - Step 6: Final answer
x = 161,554.32
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1.5x scale
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.