Finding the Fourth Proportional to 157,370.99, 217,171.04 and 85,750.79
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Solution
The fourth proportional to 157,370.99, 217,171.04 and 85,750.79 is: 118,335.58
Step by Step Solution
- Step 1: Write the proportion equation
157,370.99 : 217,171.04 = 85,750.79 : x - Step 2: Convert to fraction form
157,370.99/217,171.04 = 85,750.79/x - Step 3: Cross multiply
157,370.99x = 217,171.04 × 85,750.79 - Step 4: Simplify right side
157,370.99x = 18,622,586,730.51 - Step 5: Solve for x
x = 18,622,586,730.51/157,370.99 - Step 6: Final answer
x = 118,335.58
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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.