Finding the Fourth Proportional to 134,660.24, 185,831.07 and 74,231.87
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Solution
The fourth proportional to 134,660.24, 185,831.07 and 74,231.87 is: 102,439.94
Step by Step Solution
- Step 1: Write the proportion equation
134,660.24 : 185,831.07 = 74,231.87 : x - Step 2: Convert to fraction form
134,660.24/185,831.07 = 74,231.87/x - Step 3: Cross multiply
134,660.24x = 185,831.07 × 74,231.87 - Step 4: Simplify right side
134,660.24x = 13,794,586,901.05 - Step 5: Solve for x
x = 13,794,586,901.05/134,660.24 - Step 6: Final answer
x = 102,439.94
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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.