Finding the Fourth Proportional to 98,923.50, 136,478.61 and 60,147.99
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Solution
The fourth proportional to 98,923.50, 136,478.61 and 60,147.99 is: 82,982.45
Step by Step Solution
- Step 1: Write the proportion equation
98,923.50 : 136,478.61 = 60,147.99 : x - Step 2: Convert to fraction form
98,923.50/136,478.61 = 60,147.99/x - Step 3: Cross multiply
98,923.50x = 136,478.61 × 60,147.99 - Step 4: Simplify right side
98,923.50x = 8,208,914,069.49 - Step 5: Solve for x
x = 8,208,914,069.49/98,923.50 - Step 6: Final answer
x = 82,982.45
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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.