Finding the Fourth Proportional to 197,781.99, 272,940.46 and 107,137.96
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Solution
The fourth proportional to 197,781.99, 272,940.46 and 107,137.96 is: 147,851.09
Step by Step Solution
- Step 1: Write the proportion equation
197,781.99 : 272,940.46 = 107,137.96 : x - Step 2: Convert to fraction form
197,781.99/272,940.46 = 107,137.96/x - Step 3: Cross multiply
197,781.99x = 272,940.46 × 107,137.96 - Step 4: Simplify right side
197,781.99x = 29,242,283,135.67 - Step 5: Solve for x
x = 29,242,283,135.67/197,781.99 - Step 6: Final answer
x = 147,851.09
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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.