Finding the Fourth Proportional to 113,804.97, 157,038.67 and 65,397.09
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Solution
The fourth proportional to 113,804.97, 157,038.67 and 65,397.09 is: 90,240.98
Step by Step Solution
- Step 1: Write the proportion equation
113,804.97 : 157,038.67 = 65,397.09 : x - Step 2: Convert to fraction form
113,804.97/157,038.67 = 65,397.09/x - Step 3: Cross multiply
113,804.97x = 157,038.67 × 65,397.09 - Step 4: Simplify right side
113,804.97x = 10,269,872,035.47 - Step 5: Solve for x
x = 10,269,872,035.47/113,804.97 - Step 6: Final answer
x = 90,240.98
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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.