Finding the Fourth Proportional to 98,190.70, 135,504.06 and 55,750.14
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Solution
The fourth proportional to 98,190.70, 135,504.06 and 55,750.14 is: 76,935.70
Step by Step Solution
- Step 1: Write the proportion equation
98,190.70 : 135,504.06 = 55,750.14 : x - Step 2: Convert to fraction form
98,190.70/135,504.06 = 55,750.14/x - Step 3: Cross multiply
98,190.70x = 135,504.06 × 55,750.14 - Step 4: Simplify right side
98,190.70x = 7,554,370,315.57 - Step 5: Solve for x
x = 7,554,370,315.57/98,190.70 - Step 6: Final answer
x = 76,935.70
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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.