Finding the Fourth Proportional to 99,187.08, 136,879.14 and 54,475.08
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Solution
The fourth proportional to 99,187.08, 136,879.14 and 54,475.08 is: 75,176.14
Step by Step Solution
- Step 1: Write the proportion equation
99,187.08 : 136,879.14 = 54,475.08 : x - Step 2: Convert to fraction form
99,187.08/136,879.14 = 54,475.08/x - Step 3: Cross multiply
99,187.08x = 136,879.14 × 54,475.08 - Step 4: Simplify right side
99,187.08x = 7,456,502,101.83 - Step 5: Solve for x
x = 7,456,502,101.83/99,187.08 - Step 6: Final answer
x = 75,176.14
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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.