Finding the Fourth Proportional to 157,558.77, 217,435.19 and 85,939.99
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Solution
The fourth proportional to 157,558.77, 217,435.19 and 85,939.99 is: 118,599.41
Step by Step Solution
- Step 1: Write the proportion equation
157,558.77 : 217,435.19 = 85,939.99 : x - Step 2: Convert to fraction form
157,558.77/217,435.19 = 85,939.99/x - Step 3: Cross multiply
157,558.77x = 217,435.19 × 85,939.99 - Step 4: Simplify right side
157,558.77x = 18,686,377,080.96 - Step 5: Solve for x
x = 18,686,377,080.96/157,558.77 - Step 6: Final answer
x = 118,599.41
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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.