Finding the Fourth Proportional to 125,369.07, 173,021.76 and 71,661.84
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Solution
The fourth proportional to 125,369.07, 173,021.76 and 71,661.84 is: 98,900.45
Step by Step Solution
- Step 1: Write the proportion equation
125,369.07 : 173,021.76 = 71,661.84 : x - Step 2: Convert to fraction form
125,369.07/173,021.76 = 71,661.84/x - Step 3: Cross multiply
125,369.07x = 173,021.76 × 71,661.84 - Step 4: Simplify right side
125,369.07x = 12,399,057,681.64 - Step 5: Solve for x
x = 12,399,057,681.64/125,369.07 - Step 6: Final answer
x = 98,900.45
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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.