Finding the Fourth Proportional to 126,502.58, 189,360.19 and 79,657.06
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Solution
The fourth proportional to 126,502.58, 189,360.19 and 79,657.06 is: 119,237.69
Step by Step Solution
- Step 1: Write the proportion equation
126,502.58 : 189,360.19 = 79,657.06 : x - Step 2: Convert to fraction form
126,502.58/189,360.19 = 79,657.06/x - Step 3: Cross multiply
126,502.58x = 189,360.19 × 79,657.06 - Step 4: Simplify right side
126,502.58x = 15,083,876,016.44 - Step 5: Solve for x
x = 15,083,876,016.44/126,502.58 - Step 6: Final answer
x = 119,237.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.