Finding the Fourth Proportional to 159,433.41, 220,028.07 and 87,813.41
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Solution
The fourth proportional to 159,433.41, 220,028.07 and 87,813.41 is: 121,187.99
Step by Step Solution
- Step 1: Write the proportion equation
159,433.41 : 220,028.07 = 87,813.41 : x - Step 2: Convert to fraction form
159,433.41/220,028.07 = 87,813.41/x - Step 3: Cross multiply
159,433.41x = 220,028.07 × 87,813.41 - Step 4: Simplify right side
159,433.41x = 19,321,414,572.35 - Step 5: Solve for x
x = 19,321,414,572.35/159,433.41 - Step 6: Final answer
x = 121,187.99
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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.