Finding the Fourth Proportional to 99,947.13, 149,920.56 and 26,075.13
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Solution
The fourth proportional to 99,947.13, 149,920.56 and 26,075.13 is: 39,112.66
Step by Step Solution
- Step 1: Write the proportion equation
99,947.13 : 149,920.56 = 26,075.13 : x - Step 2: Convert to fraction form
99,947.13/149,920.56 = 26,075.13/x - Step 3: Cross multiply
99,947.13x = 149,920.56 × 26,075.13 - Step 4: Simplify right side
99,947.13x = 3,909,198,091.67 - Step 5: Solve for x
x = 3,909,198,091.67/99,947.13 - Step 6: Final answer
x = 39,112.66
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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.