Finding the Fourth Proportional to 157,364.93, 217,157.50 and 85,745.49
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Solution
The fourth proportional to 157,364.93, 217,157.50 and 85,745.49 is: 118,325.45
Step by Step Solution
- Step 1: Write the proportion equation
157,364.93 : 217,157.50 = 85,745.49 : x - Step 2: Convert to fraction form
157,364.93/217,157.50 = 85,745.49/x - Step 3: Cross multiply
157,364.93x = 217,157.50 × 85,745.49 - Step 4: Simplify right side
157,364.93x = 18,620,276,244.68 - Step 5: Solve for x
x = 18,620,276,244.68/157,364.93 - Step 6: Final answer
x = 118,325.45
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1.5x scale
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.