Finding the Fourth Proportional to 107,251.12, 148,019.67 and 61,928.99
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Solution
The fourth proportional to 107,251.12, 148,019.67 and 61,928.99 is: 85,469.58
Step by Step Solution
- Step 1: Write the proportion equation
107,251.12 : 148,019.67 = 61,928.99 : x - Step 2: Convert to fraction form
107,251.12/148,019.67 = 61,928.99/x - Step 3: Cross multiply
107,251.12x = 148,019.67 × 61,928.99 - Step 4: Simplify right side
107,251.12x = 9,166,707,923.13 - Step 5: Solve for x
x = 9,166,707,923.13/107,251.12 - Step 6: Final answer
x = 85,469.58
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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.