Finding the Fourth Proportional to 187,831.23, 259,205.63 and 102,948.09
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Solution
The fourth proportional to 187,831.23, 259,205.63 and 102,948.09 is: 142,067.56
Step by Step Solution
- Step 1: Write the proportion equation
187,831.23 : 259,205.63 = 102,948.09 : x - Step 2: Convert to fraction form
187,831.23/259,205.63 = 102,948.09/x - Step 3: Cross multiply
187,831.23x = 259,205.63 × 102,948.09 - Step 4: Simplify right side
187,831.23x = 26,684,724,525.75 - Step 5: Solve for x
x = 26,684,724,525.75/187,831.23 - Step 6: Final answer
x = 142,067.56
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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.