Finding the Fourth Proportional to 115,895.21, 159,907.97 and 65,594.21
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Solution
The fourth proportional to 115,895.21, 159,907.97 and 65,594.21 is: 90,504.49
Step by Step Solution
- Step 1: Write the proportion equation
115,895.21 : 159,907.97 = 65,594.21 : x - Step 2: Convert to fraction form
115,895.21/159,907.97 = 65,594.21/x - Step 3: Cross multiply
115,895.21x = 159,907.97 × 65,594.21 - Step 4: Simplify right side
115,895.21x = 10,489,036,083.32 - Step 5: Solve for x
x = 10,489,036,083.32/115,895.21 - Step 6: Final answer
x = 90,504.49
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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.