Finding the Fourth Proportional to 125,879.29, 189,508.01 and 114,856.81
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Solution
The fourth proportional to 125,879.29, 189,508.01 and 114,856.81 is: 172,913.95
Step by Step Solution
- Step 1: Write the proportion equation
125,879.29 : 189,508.01 = 114,856.81 : x - Step 2: Convert to fraction form
125,879.29/189,508.01 = 114,856.81/x - Step 3: Cross multiply
125,879.29x = 189,508.01 × 114,856.81 - Step 4: Simplify right side
125,879.29x = 21,766,284,449.99 - Step 5: Solve for x
x = 21,766,284,449.99/125,879.29 - Step 6: Final answer
x = 172,913.95
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.