Finding the Fourth Proportional to 99,995.12, 149,918.46 and 60,542.84
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Solution
The fourth proportional to 99,995.12, 149,918.46 and 60,542.84 is: 90,769.32
Step by Step Solution
- Step 1: Write the proportion equation
99,995.12 : 149,918.46 = 60,542.84 : x - Step 2: Convert to fraction form
99,995.12/149,918.46 = 60,542.84/x - Step 3: Cross multiply
99,995.12x = 149,918.46 × 60,542.84 - Step 4: Simplify right side
99,995.12x = 9,076,489,336.83 - Step 5: Solve for x
x = 9,076,489,336.83/99,995.12 - Step 6: Final answer
x = 90,769.32
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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.