Finding the Fourth Proportional to 142,711.07, 197,021.97 and 97,454.75
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Solution
The fourth proportional to 142,711.07, 197,021.97 and 97,454.75 is: 134,542.66
Step by Step Solution
- Step 1: Write the proportion equation
142,711.07 : 197,021.97 = 97,454.75 : x - Step 2: Convert to fraction form
142,711.07/197,021.97 = 97,454.75/x - Step 3: Cross multiply
142,711.07x = 197,021.97 × 97,454.75 - Step 4: Simplify right side
142,711.07x = 19,200,725,845.75 - Step 5: Solve for x
x = 19,200,725,845.75/142,711.07 - Step 6: Final answer
x = 134,542.66
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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.