Finding the Fourth Proportional to 137,831.01, 190,227.36 and 84,147.15
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Solution
The fourth proportional to 137,831.01, 190,227.36 and 84,147.15 is: 116,135.62
Step by Step Solution
- Step 1: Write the proportion equation
137,831.01 : 190,227.36 = 84,147.15 : x - Step 2: Convert to fraction form
137,831.01/190,227.36 = 84,147.15/x - Step 3: Cross multiply
137,831.01x = 190,227.36 × 84,147.15 - Step 4: Simplify right side
137,831.01x = 16,007,090,196.02 - Step 5: Solve for x
x = 16,007,090,196.02/137,831.01 - Step 6: Final answer
x = 116,135.62
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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.