Finding the Fourth Proportional to 157,526.74, 217,392.18 and 85,910.68
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Solution
The fourth proportional to 157,526.74, 217,392.18 and 85,910.68 is: 118,559.62
Step by Step Solution
- Step 1: Write the proportion equation
157,526.74 : 217,392.18 = 85,910.68 : x - Step 2: Convert to fraction form
157,526.74/217,392.18 = 85,910.68/x - Step 3: Cross multiply
157,526.74x = 217,392.18 × 85,910.68 - Step 4: Simplify right side
157,526.74x = 18,676,310,010.48 - Step 5: Solve for x
x = 18,676,310,010.48/157,526.74 - Step 6: Final answer
x = 118,559.62
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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.