Finding the Fourth Proportional to 99,206.73, 136,830.26 and 68,976.92
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Solution
The fourth proportional to 99,206.73, 136,830.26 and 68,976.92 is: 95,135.99
Step by Step Solution
- Step 1: Write the proportion equation
99,206.73 : 136,830.26 = 68,976.92 : x - Step 2: Convert to fraction form
99,206.73/136,830.26 = 68,976.92/x - Step 3: Cross multiply
99,206.73x = 136,830.26 × 68,976.92 - Step 4: Simplify right side
99,206.73x = 9,438,130,412.12 - Step 5: Solve for x
x = 9,438,130,412.12/99,206.73 - Step 6: Final answer
x = 95,135.99
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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.