Finding the Fourth Proportional to 139,804.25, 209,707.73 and 39,963.75
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Solution
The fourth proportional to 139,804.25, 209,707.73 and 39,963.75 is: 59,946.01
Step by Step Solution
- Step 1: Write the proportion equation
139,804.25 : 209,707.73 = 39,963.75 : x - Step 2: Convert to fraction form
139,804.25/209,707.73 = 39,963.75/x - Step 3: Cross multiply
139,804.25x = 209,707.73 × 39,963.75 - Step 4: Simplify right side
139,804.25x = 8,380,706,458.43 - Step 5: Solve for x
x = 8,380,706,458.43/139,804.25 - Step 6: Final answer
x = 59,946.01
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.