Finding the Fourth Proportional to 157,512.24, 217,372.14 and 85,896.18
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Solution
The fourth proportional to 157,512.24, 217,372.14 and 85,896.18 is: 118,539.59
Step by Step Solution
- Step 1: Write the proportion equation
157,512.24 : 217,372.14 = 85,896.18 : x - Step 2: Convert to fraction form
157,512.24/217,372.14 = 85,896.18/x - Step 3: Cross multiply
157,512.24x = 217,372.14 × 85,896.18 - Step 4: Simplify right side
157,512.24x = 18,671,436,464.43 - Step 5: Solve for x
x = 18,671,436,464.43/157,512.24 - Step 6: Final answer
x = 118,539.59
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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.