Finding the Fourth Proportional to 99,204.80, 136,827.60 and 68,974.99
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Solution
The fourth proportional to 99,204.80, 136,827.60 and 68,974.99 is: 95,133.32
Step by Step Solution
- Step 1: Write the proportion equation
99,204.80 : 136,827.60 = 68,974.99 : x - Step 2: Convert to fraction form
99,204.80/136,827.60 = 68,974.99/x - Step 3: Cross multiply
99,204.80x = 136,827.60 × 68,974.99 - Step 4: Simplify right side
99,204.80x = 9,437,682,341.72 - Step 5: Solve for x
x = 9,437,682,341.72/99,204.80 - Step 6: Final answer
x = 95,133.32
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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.