Finding the Fourth Proportional to 99,208.75, 136,908.08 and 54,496.75
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Solution
The fourth proportional to 99,208.75, 136,908.08 and 54,496.75 is: 75,205.52
Step by Step Solution
- Step 1: Write the proportion equation
99,208.75 : 136,908.08 = 54,496.75 : x - Step 2: Convert to fraction form
99,208.75/136,908.08 = 54,496.75/x - Step 3: Cross multiply
99,208.75x = 136,908.08 × 54,496.75 - Step 4: Simplify right side
99,208.75x = 7,461,045,408.74 - Step 5: Solve for x
x = 7,461,045,408.74/99,208.75 - Step 6: Final answer
x = 75,205.52
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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.