Finding the Fourth Proportional to 113,922.75, 157,212.74 and 62,939.00
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Solution
The fourth proportional to 113,922.75, 157,212.74 and 62,939.00 is: 86,855.45
Step by Step Solution
- Step 1: Write the proportion equation
113,922.75 : 157,212.74 = 62,939.00 : x - Step 2: Convert to fraction form
113,922.75/157,212.74 = 62,939.00/x - Step 3: Cross multiply
113,922.75x = 157,212.74 × 62,939.00 - Step 4: Simplify right side
113,922.75x = 9,894,811,542.10 - Step 5: Solve for x
x = 9,894,811,542.10/113,922.75 - Step 6: Final answer
x = 86,855.45
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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.