Finding the Fourth Proportional to 190,699.68, 263,148.12 and 113,161.95
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Solution
The fourth proportional to 190,699.68, 263,148.12 and 113,161.95 is: 156,153.14
Step by Step Solution
- Step 1: Write the proportion equation
190,699.68 : 263,148.12 = 113,161.95 : x - Step 2: Convert to fraction form
190,699.68/263,148.12 = 113,161.95/x - Step 3: Cross multiply
190,699.68x = 263,148.12 × 113,161.95 - Step 4: Simplify right side
190,699.68x = 29,778,354,398.03 - Step 5: Solve for x
x = 29,778,354,398.03/190,699.68 - Step 6: Final answer
x = 156,153.14
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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.