Finding the Fourth Proportional to 160,439.87, 221,408.75 and 88,821.09
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Solution
The fourth proportional to 160,439.87, 221,408.75 and 88,821.09 is: 122,574.06
Step by Step Solution
- Step 1: Write the proportion equation
160,439.87 : 221,408.75 = 88,821.09 : x - Step 2: Convert to fraction form
160,439.87/221,408.75 = 88,821.09/x - Step 3: Cross multiply
160,439.87x = 221,408.75 × 88,821.09 - Step 4: Simplify right side
160,439.87x = 19,665,766,732.59 - Step 5: Solve for x
x = 19,665,766,732.59/160,439.87 - Step 6: Final answer
x = 122,574.06
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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.