Finding the Fourth Proportional to 157,362.43, 217,154.06 and 85,742.99
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Solution
The fourth proportional to 157,362.43, 217,154.06 and 85,742.99 is: 118,322.00
Step by Step Solution
- Step 1: Write the proportion equation
157,362.43 : 217,154.06 = 85,742.99 : x - Step 2: Convert to fraction form
157,362.43/217,154.06 = 85,742.99/x - Step 3: Cross multiply
157,362.43x = 217,154.06 × 85,742.99 - Step 4: Simplify right side
157,362.43x = 18,619,436,880.55 - Step 5: Solve for x
x = 18,619,436,880.55/157,362.43 - Step 6: Final answer
x = 118,322.00
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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.