Finding the Fourth Proportional to 157,574.19, 217,453.77 and 85,954.53
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Solution
The fourth proportional to 157,574.19, 217,453.77 and 85,954.53 is: 118,618.01
Step by Step Solution
- Step 1: Write the proportion equation
157,574.19 : 217,453.77 = 85,954.53 : x - Step 2: Convert to fraction form
157,574.19/217,453.77 = 85,954.53/x - Step 3: Cross multiply
157,574.19x = 217,453.77 × 85,954.53 - Step 4: Simplify right side
157,574.19x = 18,691,136,597.08 - Step 5: Solve for x
x = 18,691,136,597.08/157,574.19 - Step 6: Final answer
x = 118,618.01
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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.