Finding the Fourth Proportional to 157,188.44, 216,920.05 and 85,568.99
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Solution
The fourth proportional to 157,188.44, 216,920.05 and 85,568.99 is: 118,085.20
Step by Step Solution
- Step 1: Write the proportion equation
157,188.44 : 216,920.05 = 85,568.99 : x - Step 2: Convert to fraction form
157,188.44/216,920.05 = 85,568.99/x - Step 3: Cross multiply
157,188.44x = 216,920.05 × 85,568.99 - Step 4: Simplify right side
157,188.44x = 18,561,628,290.73 - Step 5: Solve for x
x = 18,561,628,290.73/157,188.44 - Step 6: Final answer
x = 118,085.20
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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.