Finding the Fourth Proportional to 121,779.38, 182,373.84 and 84,234.08
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Solution
The fourth proportional to 121,779.38, 182,373.84 and 84,234.08 is: 126,146.91
Step by Step Solution
- Step 1: Write the proportion equation
121,779.38 : 182,373.84 = 84,234.08 : x - Step 2: Convert to fraction form
121,779.38/182,373.84 = 84,234.08/x - Step 3: Cross multiply
121,779.38x = 182,373.84 × 84,234.08 - Step 4: Simplify right side
121,779.38x = 15,362,092,628.47 - Step 5: Solve for x
x = 15,362,092,628.47/121,779.38 - Step 6: Final answer
x = 126,146.91
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.