Finding the Fourth Proportional to 118,982.12, 164,172.58 and 68,010.99
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Solution
The fourth proportional to 118,982.12, 164,172.58 and 68,010.99 is: 93,842.17
Step by Step Solution
- Step 1: Write the proportion equation
118,982.12 : 164,172.58 = 68,010.99 : x - Step 2: Convert to fraction form
118,982.12/164,172.58 = 68,010.99/x - Step 3: Cross multiply
118,982.12x = 164,172.58 × 68,010.99 - Step 4: Simplify right side
118,982.12x = 11,165,539,526.63 - Step 5: Solve for x
x = 11,165,539,526.63/118,982.12 - Step 6: Final answer
x = 93,842.17
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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.