Finding the Fourth Proportional to 159,168.57, 219,683.82 and 91,231.08
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Solution
The fourth proportional to 159,168.57, 219,683.82 and 91,231.08 is: 125,916.77
Step by Step Solution
- Step 1: Write the proportion equation
159,168.57 : 219,683.82 = 91,231.08 : x - Step 2: Convert to fraction form
159,168.57/219,683.82 = 91,231.08/x - Step 3: Cross multiply
159,168.57x = 219,683.82 × 91,231.08 - Step 4: Simplify right side
159,168.57x = 20,041,992,157.13 - Step 5: Solve for x
x = 20,041,992,157.13/159,168.57 - Step 6: Final answer
x = 125,916.77
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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.