Finding the Fourth Proportional to 145,968.25, 201,437.63 and 81,436.94
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Solution
The fourth proportional to 145,968.25, 201,437.63 and 81,436.94 is: 112,383.79
Step by Step Solution
- Step 1: Write the proportion equation
145,968.25 : 201,437.63 = 81,436.94 : x - Step 2: Convert to fraction form
145,968.25/201,437.63 = 81,436.94/x - Step 3: Cross multiply
145,968.25x = 201,437.63 × 81,436.94 - Step 4: Simplify right side
145,968.25x = 16,404,464,188.05 - Step 5: Solve for x
x = 16,404,464,188.05/145,968.25 - Step 6: Final answer
x = 112,383.79
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1.5x scale
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.