Finding the Fourth Proportional to 99,007.68, 148,518.56 and 39,843.68
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Solution
The fourth proportional to 99,007.68, 148,518.56 and 39,843.68 is: 59,768.35
Step by Step Solution
- Step 1: Write the proportion equation
99,007.68 : 148,518.56 = 39,843.68 : x - Step 2: Convert to fraction form
99,007.68/148,518.56 = 39,843.68/x - Step 3: Cross multiply
99,007.68x = 148,518.56 × 39,843.68 - Step 4: Simplify right side
99,007.68x = 5,917,525,978.70 - Step 5: Solve for x
x = 5,917,525,978.70/99,007.68 - Step 6: Final answer
x = 59,768.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.