Finding the Fourth Proportional to 157,586.98, 217,469.74 and 85,966.99
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Solution
The fourth proportional to 157,586.98, 217,469.74 and 85,966.99 is: 118,634.29
Step by Step Solution
- Step 1: Write the proportion equation
157,586.98 : 217,469.74 = 85,966.99 : x - Step 2: Convert to fraction form
157,586.98/217,469.74 = 85,966.99/x - Step 3: Cross multiply
157,586.98x = 217,469.74 × 85,966.99 - Step 4: Simplify right side
157,586.98x = 18,695,218,963.88 - Step 5: Solve for x
x = 18,695,218,963.88/157,586.98 - Step 6: Final answer
x = 118,634.29
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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.